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, b, or c without using any additional words.
Options:
[a] O=C(O)C1CN(C2CC[C@]3(Cc4ccccc4Cc4ccccc43)C2)C1
[b] Cc1cccc(N2CCN(CCCCNC(=O)c3cc4ccccc4o3)CC2)c1
[c] CSc1ccc([C@H]2N=C(OCc3ccc(NS(C)(=O)=O)cc3)N(C)Cc3ccccc32)cc1.Cl
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-[4-[4-(3-methylphenyl)piperazin-1-yl]butyl]-1-benzofuran-2-carboxamide