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(c1ccccc1)N1CCC2(CC1)CC(C(=O)N1CCN(C3CCC3)CC1)C2
b) O[C@H](COc1ccc(F)cc1)CN1CCN(Cc2ccc(Cl)cc2)CC1
c) Cc1ccc(-n2c(-c3ncccc3Cl)nc(CN[C@H]3CC[C@@H](F)C3)c2C(C)C)cn1
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}
(2S)-1-[4-[(4-chlorophenyl)methyl]piperazin-1-yl]-3-(4-fluorophenoxy)propan-2-ol