def METHOD_NAME(lines, unit_cell, space_group_info, min_distance_sym_equiv):
  sdb_files = sdb_reader.multi_sdb_parser(lines)
  xray_structures = []
  for sdb in sdb_files:
    if (unit_cell is not None): sdb.unit_cell = unit_cell
    if (space_group_info is not None): sdb.space_group_info = space_group_info
    xray_structure = sdb.as_xray_structure(min_distance_sym_equiv=min_distance_sym_equiv)
    xray_structures.append(xray_structure)
  return xray_structures