public_sql_50/bond_record.csv

original_column_name,data_format,combined_description
record_id,integer,unique identifier of the bond record
bond_id,text,optional reference to the bond identifier
molecule_id,text,optional reference to the molecule associated with this record
atom_id,text,optional first atom id for an atom-to-atom bond record
atom_id2,text,optional second atom id for an atom-to-atom bond record
bond_type,text,optional bond order/type code when present
record_kind,text,"indicates which representation the record follows (e.g., bond_row vs connected_row)"