Task: Please answer the multiple choice question.
Question: Which molecules are a human ether-à-go-go related gene (hERG) blocker?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
[a] O=c1[nH]c2ccccc2n1CCCN1CCN(C(c2ccccc2)c2ccccc2)CC1
[b] Fc1ccc2[nH]c(-c3ccccc3)c([C@@H]3C[NH2+]CC[C@@H]3F)c2c1
[c] Clc1ccc(C(c2ccc(Cl)cc2)n2cc[n+](CC(OCc3ccc(Cl)cc3Cl)c3ccc(Cl)cc3Cl)c2)cc1
Answer: a, b, c
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}
3-[3-(4-benzhydrylpiperazin-1-yl)propyl]-1H-benzimidazol-2-one