original_column_name,column_name,column_description,data_format,value_description
bond_id,,unique id representing bonds,text,"TRxxx_A1_A2:
TRXXX refers to which molecule
A1 and A2 refers to which atom"
molecule_id,,identifying the molecule in which the bond appears,text,
bond_type,,type of the bond,text,"commonsense evidence:
“-”: single bond
'=': double bond
'#': triple bond"