data_symmetry_cell_setting
    _name                      '_symmetry_cell_setting'
    _category                    symmetry
    _type                        char
    loop_ _enumeration           triclinic
                                 MONOCLINIC
                                 monoclinic
                                 orthorhombic
                                 tetragonal
                                 rhombohedral
                                 trigonal
                                 hexagonal
                                 cubic
    _related_item              '_space_group_crystal_system'
    _related_function            replace
    _definition
;              The cell settings for this space-group symmetry.
;
