Task: Please answer the multiple choice question.
Question: Which molecules are a human ether-à-go-go related gene (hERG) blocking compound (<10uM)?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a. N[C@H]1CN(C(=O)c2ccc3ncsc3c2)C[C@H]1C(=O)N1CCCC1
b. O=C(OCc1ccccc1)N1CCC(CNc2nccs2)CC1
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}
benzyl 4-[(1,3-thiazol-2-ylamino)methyl]piperidine-1-carboxylate