Chinastark/bird_dataset huggingface dataset:
Column: atom_id
Name: atom id
Data format: text
Description: the unique id of atoms
Column: molecule_id
Name: molecule id
Data format: text
Description: identifying the molecule to which the atom belongs
Value description: commonsense evidence:
TRXXX_i represents ith atom of molecule TRXXX
Column: element
Data format: text
Description: the element of the toxicology 
Value description:  cl: chlorine
 c: carbon
 h: hydrogen
 o: oxygen
 s: sulfur
 n: nitrogen
 p: phosphorus
 na: sodium
 br: bromine
 f: fluorine
 i: iodine
 sn: Tin
 pb: lead
 te: tellurium
 ca: Calcium