Task: Please answer the multiple choice question.
Question: Which molecules are not 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) O=C1COc2ccc(CNC3CCN(CCN4C(=O)COc5ccc(Br)cc54)CC3)nc2N1
(b) Cc1ccccc1C(=O)N(CC1CCC1)C1CCNC1
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}
N-(cyclobutylmethyl)-2-methyl-N-pyrrolidin-3-yl-benzamide