Task: Please answer the multiple choice question.
Question: Which molecules are 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=C1CCc2ccc(OCCCCN3CCN(c4cccc(Cl)c4Cl)CC3)cc2N1
(b) CCc1nc2ccccc2n1C1C[C@H]2CC[C@H](C1)N2CC[C@H](NC(=O)C1CCS(=O)(=O)CC1)c1ccc(F)cc1
Answer: a
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}
7-[4-[4-(2,3-dichlorocyclohexa-1,3,5-trien-1-yl)piperazin-1-yl]butoxy]-3,4-dihydro-1H-quinolin-2-one