Task: Please answer the multiple choice question.
Question: Which molecules are a human ether-à-go-go related gene (hERG) blocker (<10uM)?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a: O=C(NCc1ccccc1)N(c1ccc(Br)cc1)C1CCN(Cc2ccncc2)CC1
b: CCOc1cc2ncc(C(N)=O)c(Nc3ccc(F)cc3F)c2cc1N1CCN(C)C(=O)C1
c: CCOc1ccccc1C[C@@H](c1ccccc1)N1CCNCC1
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}
3-benzyl-1-(4-bromophenyl)-1-[1-(pyridin-4-ylmethyl)piperidin-4-yl]urea