Task: Please answer the multiple choice question.
Question: Which molecules are not a hERG blocker (<10uM)?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a: O=C(NC1CCc2ccc(CCN3CCN(c4nsc5ccccc45)CC3)cc21)c1ccc(Cl)cc1
b: COc1ccc(CC(=O)O)cc1-c1ccc(C(F)(F)F)cc1CN(CCc1ccccc1)C(=O)O
Answer: b
Task: Please answer the multiple choice question.
Question: Which molecules are {herg_blocker#not &NULL}a {herg_blocker__names__noun}?
Constraint: You must select none, one or more options from {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{SMILES%herg_blocker%}
Answer: {%multiple_choice_result}
2-[3-[2-[[carboxy(2-phenylethyl)amino]methyl]-4-(trifluoromethyl)phenyl]-4-methoxy-phenyl]ethanoicacid