##############################################################################
#                                                                            #
# This CIF contains the data in a paper accepted for publication in          #
# Acta Crystallographica Section E. It conforms to the requirements of       #
# Notes for Authors for Acta Crystallographica Section E, and has been       #
# peer reviewed under the auspices of the IUCr Commission on Journals.       #
#                                                                            #
# Full details of the Crystallographic Information File format               #
# are given in the paper "The Crystallographic Information File (CIF):       #
# a New Standard Archive File for Crystallography" by S. R. Hall, F. H.      #
# Allen and I. D. Brown [Acta Cryst. (1991), A47, 655-685].                  #
#                                                                            #
# The current version of the core CIF dictionary is obtainable from          #
# ftp://ftp.iucr.org/pub/cif_core.dic.                                       #
#                                                                            #
# Software is freely available for graphical display of the structure(s)     #
# in this CIF. For information consult the CIF software page                 #
# http://www.iucr.org/resources/cif/software.                                #
#                                                                            #
# This file may be used for bona fide research purposes within the           #
# scientific community so long as proper attribution is given to the journal # 
# article from which it was obtained.                                        #
#                                                                            #
##############################################################################
data_I
_audit_creation_method     'form.cif (version 2.0)'
_journal_data_validation_number     ?
_journal_date_recd_electronic     2014-08-15
_journal_date_accepted     2014-09-15
_journal_name_full     'Acta Crystallographica, Section E'
_journal_year     2014
_journal_volume     70
_journal_issue     10
_journal_page_first     249
_journal_page_last     251
_journal_paper_category     GO
_journal_paper_doi     10.1107/S1600536814019436
_journal_coeditor_code     ZP2015
_publ_contact_author_name     'Prof. Uk Lee'
_publ_contact_author_address
;
 Department of Chemistry, Pukyong National University, 599-1 Daeyeon 3-dong
 Nam-gu, Busan 608-737, Republic of Korea
;
_publ_contact_author_email     'uklee@pknu.ac.kr'
_publ_contact_author_fax     '+82-51-629-5583'
_publ_contact_author_phone     '+82-51-629-5596'
_publ_section_title
;
Crystal structure of
2-ethyl-3-(4-fluorophenylsulfonyl)-5,7-dimethyl-1-benzofuran
;
loop_
    _publ_author_name
    _publ_author_address
    'Choi, Hong Dae'
;
 Department of Chemistry, Dongeui University, San 24 Kaya-dong
 Busanjin-gu, Busan 614-714, Republic of Korea
;
    'Lee, Uk'
;
 Department of Chemistry, Pukyong National University,
 599-1 Daeyeon 3-dong
 Nam-gu, Busan 608-737, Republic of Korea
;
_publ_section_synopsis
;
In the title compound, the dihedral angle between the plane of the benzofuran
ring and the 4-fluorophenyl ring is 82.45 (4) °. In the crystal, molecules
are linked via three different pairs of C---H...O hydrogen bonds,
forming chains along [001] and enclosing two R²₂(10) and one
R²₂(12) ring motifs.
;
_database_code_depnum_ccdc_archive     'CCDC 1021511'
_chemical_name_systematic
;
2-Ethyl-3-(4-fluorophenylsulfonyl)-5,7-dimethyl-1-benzofuran
;
_chemical_name_common     ?
_chemical_formula_moiety     'C18 H17 F O3 S'
_chemical_formula_sum     'C18 H17 F O3 S'
_chemical_formula_weight     332.38
_chemical_melting_point_gt     417
_chemical_melting_point_lt     416
_symmetry_cell_setting     triclinic
_symmetry_space_group_name_H-M     'P-1'
_symmetry_space_group_name_Hall     '-P 1 '
loop_
    _symmetry_equiv_pos_as_xyz
    'x, y, z'
    '-x, -y, -z'
_cell_length_a     8.8756(2)
_cell_length_b     9.3917(2)
_cell_length_c     11.0284(2)
_cell_angle_alpha     65.7350(10)
_cell_angle_beta     80.7350(10)
_cell_angle_gamma     71.1450(10)
_cell_volume     792.68(3)
_cell_formula_units_Z     2
_cell_measurement_reflns_used     6147
_cell_measurement_theta_min     2.43
_cell_measurement_theta_max     28.20
_cell_measurement_temperature     173(2)
_exptl_crystal_description     'block'
_exptl_crystal_colour     'colourless'
_exptl_crystal_size_max     0.39
_exptl_crystal_size_mid     0.33
_exptl_crystal_size_min     0.30
_exptl_crystal_density_diffrn     1.393
_exptl_crystal_density_meas     ?
_exptl_crystal_density_method     'not measured'
_exptl_crystal_F_000     348
_exptl_absorpt_coefficient_mu     0.227
_exptl_absorpt_correction_type     multi-scan
_exptl_absorpt_process_details     '(SADABS; Bruker, 2009)'
_exptl_absorpt_correction_T_min     0.9178
_exptl_absorpt_correction_T_max     0.9359
_exptl_special_details     ?
_diffrn_ambient_temperature     173(2)
_diffrn_radiation_type     MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_radiation_source     'rotating anode'
_diffrn_radiation_monochromator     'graphite multilayer'
_diffrn_measurement_device_type     'Bruker SMART APEXII CCD'
_diffrn_measurement_method     'φ and ω scans'
_diffrn_detector_area_resol_mean     10.0
_diffrn_reflns_number     14813
_diffrn_reflns_av_R_equivalents     0.0249
_diffrn_reflns_av_sigmaI/netI     0.0216
_diffrn_reflns_theta_min     2.03
_diffrn_reflns_theta_max     28.35
_diffrn_reflns_theta_full     28.35
_diffrn_measured_fraction_theta_max     0.994
_diffrn_measured_fraction_theta_full     0.994
_diffrn_reflns_limit_h_min     -11
_diffrn_reflns_limit_h_max     11
_diffrn_reflns_limit_k_min     -12
_diffrn_reflns_limit_k_max     12
_diffrn_reflns_limit_l_min     -14
_diffrn_reflns_limit_l_max     14
_diffrn_standards_number     0
_diffrn_standards_interval_count     ?
_diffrn_standards_interval_time     ?
_diffrn_standards_decay_%     ?
_refine_special_details
;
 Refinement of F² against ALL reflections.  The weighted R-factor wR and
 goodness of fit S are based on F², conventional R-factors R are based
 on F, with F set to zero for negative F². The threshold expression of
 F² > 2sigma(F²) is used only for calculating R-factors(gt) etc. and is
 not relevant to the choice of reflections for refinement.  R-factors based
 on F² are statistically about twice as large as those based on F, and R-
 factors based on ALL data will be even larger.
;
_reflns_number_total     3934
_reflns_number_gt     3489
_reflns_threshold_expression     I>2σ(I)
_refine_ls_structure_factor_coef     Fsqd
_refine_ls_matrix_type     full
_refine_ls_R_factor_all     0.0418
_refine_ls_R_factor_gt     0.0373
_refine_ls_wR_factor_gt     0.1044
_refine_ls_wR_factor_ref     0.1081
_refine_ls_goodness_of_fit_ref     1.065
_refine_ls_restrained_S_all     1.065
_refine_ls_number_reflns     3934
_refine_ls_number_parameters     211
_refine_ls_number_restraints     0
_refine_ls_hydrogen_treatment     constr
_refine_ls_weighting_scheme     calc
_refine_ls_weighting_details
         'calc w=1/[σ²(Fo²)+(0.0587P)²+0.2229P] where P=(Fo²+2Fc²)/3'
_atom_sites_solution_hydrogens     difmap
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary     difmap
_refine_ls_shift/su_max     0.000
_refine_ls_shift/su_mean     0.000
_refine_diff_density_max     0.294
_refine_diff_density_min     -0.439
_refine_ls_extinction_method     none
_refine_ls_extinction_coef     ?
loop_
    _atom_type_symbol
    _atom_type_description
    _atom_type_scat_dispersion_real
    _atom_type_scat_dispersion_imag
    _atom_type_scat_source
    'C' 'C' 0.0033 0.0016
                         'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
    'H' 'H' 0.0000 0.0000
                         'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
    'O' 'O' 0.0106 0.0060
                         'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
    'F' 'F' 0.0171 0.0103
                         'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
    'S' 'S' 0.1246 0.1234
                         'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
_computing_data_collection     'APEX2 (Bruker, 2009)'
_computing_cell_refinement     'SAINT (Bruker, 2009)'
_computing_data_reduction     'SAINT (Bruker, 2009)'
_computing_structure_solution     'SHELXS97 (Sheldrick, 2008)'
_computing_structure_refinement     'SHELXL2014 (Sheldrick, 2008)'
_computing_molecular_graphics
;
ORTEP-3 for Windows  (Farrugia, 2012) and DIAMOND
(Brandenburg,
1998)
;
_computing_publication_material
                   'SHELXL2014 (Sheldrick, 2008) and PLATON (Spek, 2009)'
loop_
    _atom_site_type_symbol
    _atom_site_label
    _atom_site_fract_x
    _atom_site_fract_y
    _atom_site_fract_z
    _atom_site_U_iso_or_equiv
    _atom_site_adp_type
    _atom_site_calc_flag
    _atom_site_refinement_flags
    _atom_site_occupancy
    _atom_site_symmetry_multiplicity
    _atom_site_disorder_assembly
    _atom_site_disorder_group
    S S1 0.47686(4) 0.90767(4) 0.29373(3) 0.02612(11) Uani d . 1 2 . .
    F F1 0.95796(13) 1.25062(13) 0.04333(11) 0.0519(3) Uani d . 1 2 . .
    O O1 0.69433(12) 0.44317(12) 0.38093(10) 0.0329(2) Uani d . 1 2 . .
    O O2 0.37720(12) 0.93598(13) 0.19098(10) 0.0339(2) Uani d . 1 2 . .
    O O3 0.40523(12) 0.95254(13) 0.40432(10) 0.0331(2) Uani d . 1 2 . .
    C C1 0.58429(16) 0.70342(16) 0.35637(13) 0.0268(3) Uani d . 1 2 . .
    C C2 0.68621(15) 0.62616(16) 0.46953(13) 0.0274(3) Uani d . 1 2 . .
    C C3 0.72804(16) 0.67484(18) 0.55984(13) 0.0300(3) Uani d . 1 2 . .
    H H3 0.6840 0.7834 0.5555 0.036 Uiso calc R 1 2 . .
    C C4 0.83619(17) 0.5600(2) 0.65658(14) 0.0343(3) Uani d . 1 2 . .
    C C5 0.89864(17) 0.40020(19) 0.66131(15) 0.0374(3) Uani d . 1 2 . .
    H H5 0.9724 0.3241 0.7282 0.045 Uiso calc R 1 2 . .
    C C6 0.85859(17) 0.34717(18) 0.57367(15) 0.0352(3) Uani d . 1 2 . .
    C C7 0.75119(16) 0.46619(17) 0.47913(14) 0.0304(3) Uani d . 1 2 . .
    C C8 0.59290(16) 0.58923(17) 0.30738(14) 0.0296(3) Uani d . 1 2 . .
    C C9 0.8875(2) 0.6073(2) 0.75486(16) 0.0472(4) Uani d . 1 2 . .
    H H9A 0.8299 0.7212 0.7398 0.071 Uiso calc R 1 2 . .
    H H9B 1.0023 0.5946 0.7432 0.071 Uiso calc R 1 2 . .
    H H9C 0.8636 0.5370 0.8456 0.071 Uiso calc R 1 2 . .
    C C10 0.9270(2) 0.17627(19) 0.57832(19) 0.0461(4) Uani d . 1 2 . .
    H H10A 0.8523 0.1503 0.5397 0.069 Uiso calc R 1 2 . .
    H H10B 0.9449 0.0998 0.6710 0.069 Uiso calc R 1 2 . .
    H H10C 1.0284 0.1673 0.5273 0.069 Uiso calc R 1 2 . .
    C C11 0.52011(18) 0.58876(19) 0.19537(15) 0.0364(3) Uani d . 1 2 . .
    H H11A 0.4181 0.6764 0.1747 0.044 Uiso calc R 1 2 . .
    H H11B 0.4962 0.4836 0.2233 0.044 Uiso calc R 1 2 . .
    C C12 0.6270(2) 0.6136(2) 0.06985(16) 0.0425(4) Uani d . 1 2 . .
    H H12A 0.6419 0.7225 0.0361 0.064 Uiso calc R 1 2 . .
    H H12B 0.5772 0.6031 0.0020 0.064 Uiso calc R 1 2 . .
    H H12C 0.7307 0.5311 0.0907 0.064 Uiso calc R 1 2 . .
    C C13 0.62269(16) 1.01143(16) 0.21923(13) 0.0261(3) Uani d . 1 2 . .
    C C14 0.68862(17) 1.01386(17) 0.09555(13) 0.0306(3) Uani d . 1 2 . .
    H H14 0.6562 0.9596 0.0527 0.037 Uiso calc R 1 2 . .
    C C15 0.80202(18) 1.09615(19) 0.03520(14) 0.0348(3) Uani d . 1 2 . .
    H H15 0.8485 1.0998 -0.0495 0.042 Uiso calc R 1 2 . .
    C C16 0.84549(18) 1.17233(17) 0.10114(15) 0.0349(3) Uani d . 1 2 . .
    C C17 0.7805(2) 1.17300(18) 0.22324(15) 0.0363(3) Uani d . 1 2 . .
    H H17 0.8130 1.2283 0.2650 0.044 Uiso calc R 1 2 . .
    C C18 0.66666(17) 1.09115(17) 0.28363(14) 0.0307(3) Uani d . 1 2 . .
    H H18 0.6194 1.0895 0.3677 0.037 Uiso calc R 1 2 . .
_geom_special_details
;
 All esds (except the esd in the dihedral angle between two l.s. planes)
 are estimated using the full covariance matrix.  The cell esds are taken
 into account individually in the estimation of esds in distances, angles
 and torsion angles; correlations between esds in cell parameters are only
 used when they are defined by crystal symmetry.  An approximate (isotropic)
 treatment of cell esds is used for estimating esds involving l.s. planes.
;
loop_
    _geom_bond_atom_site_label_1
    _geom_bond_atom_site_label_2
    _geom_bond_site_symmetry_2
    _geom_bond_distance
    _geom_bond_publ_flag
    S1 O2 . 1.4353(10) ?
    S1 O3 . 1.4383(10) ?
    S1 C1 . 1.7341(14) ?
    S1 C13 . 1.7648(14) ?
    F1 C16 . 1.3520(17) ?
    O1 C8 . 1.3684(17) ?
    O1 C7 . 1.3833(18) ?
    C1 C8 . 1.3630(19) ?
    C1 C2 . 1.4482(18) ?
    C2 C7 . 1.3892(19) ?
    C2 C3 . 1.3935(19) ?
    C3 C4 . 1.392(2) ?
    C3 H3 . 0.9500 ?
    C4 C5 . 1.403(2) ?
    C4 C9 . 1.505(2) ?
    C5 C6 . 1.389(2) ?
    C5 H5 . 0.9500 ?
    C6 C7 . 1.385(2) ?
    C6 C10 . 1.503(2) ?
    C8 C11 . 1.485(2) ?
    C9 H9A . 0.9800 ?
    C9 H9B . 0.9800 ?
    C9 H9C . 0.9800 ?
    C10 H10A . 0.9800 ?
    C10 H10B . 0.9800 ?
    C10 H10C . 0.9800 ?
    C11 C12 . 1.525(2) ?
    C11 H11A . 0.9900 ?
    C11 H11B . 0.9900 ?
    C12 H12A . 0.9800 ?
    C12 H12B . 0.9800 ?
    C12 H12C . 0.9800 ?
    C13 C14 . 1.3891(18) ?
    C13 C18 . 1.3901(19) ?
    C14 C15 . 1.385(2) ?
    C14 H14 . 0.9500 ?
    C15 C16 . 1.373(2) ?
    C15 H15 . 0.9500 ?
    C16 C17 . 1.379(2) ?
    C17 C18 . 1.385(2) ?
    C17 H17 . 0.9500 ?
    C18 H18 . 0.9500 ?
loop_
    _geom_angle_atom_site_label_1
    _geom_angle_atom_site_label_2
    _geom_angle_atom_site_label_3
    _geom_angle_site_symmetry_1
    _geom_angle_site_symmetry_3
    _geom_angle
    _geom_angle_publ_flag
    O2 S1 O3 . . 119.08(6) ?
    O2 S1 C1 . . 108.98(6) ?
    O3 S1 C1 . . 108.06(6) ?
    O2 S1 C13 . . 108.05(6) ?
    O3 S1 C13 . . 107.27(6) ?
    C1 S1 C13 . . 104.43(6) ?
    C8 O1 C7 . . 107.20(11) ?
    C8 C1 C2 . . 108.02(12) ?
    C8 C1 S1 . . 127.10(11) ?
    C2 C1 S1 . . 124.84(10) ?
    C7 C2 C3 . . 119.68(13) ?
    C7 C2 C1 . . 104.35(12) ?
    C3 C2 C1 . . 135.96(13) ?
    C4 C3 C2 . . 118.14(14) ?
    C4 C3 H3 . . 120.9 ?
    C2 C3 H3 . . 120.9 ?
    C3 C4 C5 . . 119.77(15) ?
    C3 C4 C9 . . 120.17(15) ?
    C5 C4 C9 . . 120.05(14) ?
    C6 C5 C4 . . 123.62(14) ?
    C6 C5 H5 . . 118.2 ?
    C4 C5 H5 . . 118.2 ?
    C7 C6 C5 . . 114.32(14) ?
    C7 C6 C10 . . 122.25(15) ?
    C5 C6 C10 . . 123.43(14) ?
    O1 C7 C6 . . 125.00(14) ?
    O1 C7 C2 . . 110.53(12) ?
    C6 C7 C2 . . 124.47(14) ?
    C1 C8 O1 . . 109.89(12) ?
    C1 C8 C11 . . 135.05(13) ?
    O1 C8 C11 . . 115.06(12) ?
    C4 C9 H9A . . 109.5 ?
    C4 C9 H9B . . 109.5 ?
    H9A C9 H9B . . 109.5 ?
    C4 C9 H9C . . 109.5 ?
    H9A C9 H9C . . 109.5 ?
    H9B C9 H9C . . 109.5 ?
    C6 C10 H10A . . 109.5 ?
    C6 C10 H10B . . 109.5 ?
    H10A C10 H10B . . 109.5 ?
    C6 C10 H10C . . 109.5 ?
    H10A C10 H10C . . 109.5 ?
    H10B C10 H10C . . 109.5 ?
    C8 C11 C12 . . 113.00(13) ?
    C8 C11 H11A . . 109.0 ?
    C12 C11 H11A . . 109.0 ?
    C8 C11 H11B . . 109.0 ?
    C12 C11 H11B . . 109.0 ?
    H11A C11 H11B . . 107.8 ?
    C11 C12 H12A . . 109.5 ?
    C11 C12 H12B . . 109.5 ?
    H12A C12 H12B . . 109.5 ?
    C11 C12 H12C . . 109.5 ?
    H12A C12 H12C . . 109.5 ?
    H12B C12 H12C . . 109.5 ?
    C14 C13 C18 . . 121.55(13) ?
    C14 C13 S1 . . 118.74(10) ?
    C18 C13 S1 . . 119.70(10) ?
    C15 C14 C13 . . 119.42(13) ?
    C15 C14 H14 . . 120.3 ?
    C13 C14 H14 . . 120.3 ?
    C16 C15 C14 . . 118.19(13) ?
    C16 C15 H15 . . 120.9 ?
    C14 C15 H15 . . 120.9 ?
    F1 C16 C15 . . 118.29(14) ?
    F1 C16 C17 . . 118.31(14) ?
    C15 C16 C17 . . 123.41(14) ?
    C16 C17 C18 . . 118.51(13) ?
    C16 C17 H17 . . 120.7 ?
    C18 C17 H17 . . 120.7 ?
    C17 C18 C13 . . 118.92(13) ?
    C17 C18 H18 . . 120.5 ?
    C13 C18 H18 . . 120.5 ?
loop_
    _geom_torsion_atom_site_label_1
    _geom_torsion_atom_site_label_2
    _geom_torsion_atom_site_label_3
    _geom_torsion_atom_site_label_4
    _geom_torsion_site_symmetry_1
    _geom_torsion_site_symmetry_2
    _geom_torsion_site_symmetry_3
    _geom_torsion_site_symmetry_4
    _geom_torsion
    _geom_torsion_publ_flag
    O2 S1 C1 C8 . . . . 8.30(15) ?
    O3 S1 C1 C8 . . . . 139.05(12) ?
    C13 S1 C1 C8 . . . . -106.97(13) ?
    O2 S1 C1 C2 . . . . -173.96(10) ?
    O3 S1 C1 C2 . . . . -43.20(13) ?
    C13 S1 C1 C2 . . . . 70.78(12) ?
    C8 C1 C2 C7 . . . . 0.46(14) ?
    S1 C1 C2 C7 . . . . -177.64(10) ?
    C8 C1 C2 C3 . . . . -179.96(15) ?
    S1 C1 C2 C3 . . . . 1.9(2) ?
    C7 C2 C3 C4 . . . . 0.70(19) ?
    C1 C2 C3 C4 . . . . -178.83(14) ?
    C2 C3 C4 C5 . . . . -0.4(2) ?
    C2 C3 C4 C9 . . . . 178.89(13) ?
    C3 C4 C5 C6 . . . . -0.1(2) ?
    C9 C4 C5 C6 . . . . -179.43(14) ?
    C4 C5 C6 C7 . . . . 0.4(2) ?
    C4 C5 C6 C10 . . . . 179.40(14) ?
    C8 O1 C7 C6 . . . . -179.37(13) ?
    C8 O1 C7 C2 . . . . 0.30(15) ?
    C5 C6 C7 O1 . . . . 179.55(12) ?
    C10 C6 C7 O1 . . . . 0.5(2) ?
    C5 C6 C7 C2 . . . . -0.1(2) ?
    C10 C6 C7 C2 . . . . -179.13(13) ?
    C3 C2 C7 O1 . . . . 179.87(11) ?
    C1 C2 C7 O1 . . . . -0.47(14) ?
    C3 C2 C7 C6 . . . . -0.5(2) ?
    C1 C2 C7 C6 . . . . 179.20(13) ?
    C2 C1 C8 O1 . . . . -0.30(15) ?
    S1 C1 C8 O1 . . . . 177.75(9) ?
    C2 C1 C8 C11 . . . . -179.77(15) ?
    S1 C1 C8 C11 . . . . -1.7(2) ?
    C7 O1 C8 C1 . . . . 0.01(15) ?
    C7 O1 C8 C11 . . . . 179.60(11) ?
    C1 C8 C11 C12 . . . . 95.6(2) ?
    O1 C8 C11 C12 . . . . -83.88(16) ?
    O2 S1 C13 C14 . . . . -38.40(12) ?
    O3 S1 C13 C14 . . . . -167.95(10) ?
    C1 S1 C13 C14 . . . . 77.52(12) ?
    O2 S1 C13 C18 . . . . 140.33(11) ?
    O3 S1 C13 C18 . . . . 10.79(13) ?
    C1 S1 C13 C18 . . . . -103.75(12) ?
    C18 C13 C14 C15 . . . . 0.6(2) ?
    S1 C13 C14 C15 . . . . 179.36(11) ?
    C13 C14 C15 C16 . . . . 0.2(2) ?
    C14 C15 C16 F1 . . . . 179.00(13) ?
    C14 C15 C16 C17 . . . . -1.0(2) ?
    F1 C16 C17 C18 . . . . -179.19(13) ?
    C15 C16 C17 C18 . . . . 0.8(2) ?
    C16 C17 C18 C13 . . . . 0.1(2) ?
    C14 C13 C18 C17 . . . . -0.8(2) ?
    S1 C13 C18 C17 . . . . -179.53(11) ?
loop_
    _geom_hbond_atom_site_label_D
    _geom_hbond_atom_site_label_H
    _geom_hbond_atom_site_label_A
    _geom_hbond_site_symmetry_A
    _geom_hbond_distance_DH
    _geom_hbond_distance_HA
    _geom_hbond_distance_DA
    _geom_hbond_angle_DHA
    C3 H3 O3 2_676 0.95 2.55 3.4804(18) 167
    C14 H14 O2 2_675 0.95 2.49 3.1211(17) 124
    C18 H18 O3 2_676 0.95 2.36 3.2742(17) 160
