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	original_column_name,data_format,combined_description
	bond_id,text,unique id representing bonds. Additional notes: TRxxx_A1_A2: TRXXX refers to which molecule A1 and A2 refers to which atom
	molecule_id,text,identifying the molecule in which the bond appears
	bond_type,text,type of the bond. Additional notes: commonsense evidence:-: single bond '=': double bond '#': triple bond
	source_tag,text,"tag indicating the recording basis of the bond row (e.g., canonical vs observed)"

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