$ sed -En 's/^\s*(save_)?(_[^ ]+-[^ ]+)/\2/p' mmcif_pdbx_v40.dic|sort -u
_diffrn_source.take-off_angle
_em_2d_crystal_entity.space_group_name_H-M
_pdbx_nmr_constraints.NA_alpha-angle_constraints_total_count
_pdbx_nmr_constraints.NA_beta-angle_constraints_total_count
_pdbx_nmr_constraints.NA_chi-angle_constraints_total_count
_pdbx_nmr_constraints.NA_delta-angle_constraints_total_count
_pdbx_nmr_constraints.NA_epsilon-angle_constraints_total_count
_pdbx_nmr_constraints.NA_gamma-angle_constraints_total_count
_pdbx_nmr_constraints.NA_other-angle_constraints_total_count
_pdbx_nmr_force_constants.non-bonded_inter_conf_db_potential_term
_pdbx_nmr_force_constants.non-bonded_inter_radius_of_gyration_term
_pdbx_nmr_force_constants.non-bonded_inter_radius_of_gyration_term_units
_pdbx_nmr_force_constants.non-bonded_inter_van_der_Waals_term
_pdbx_nmr_force_constants.non-bonded_inter_van_der_Waals_term_type
_pdbx_nmr_force_constants.non-bonded_inter_van_der_Waals_term_units
_pdbx_point_symmetry.H-M_notation
_space_group.name_H-M_alt
_symmetry.pdbx_full_space_group_name_H-M
_symmetry.space_group_name_H-M