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 or b without using any additional words.
Options:
a COc1ccc2ncc(F)c([C@@H](O)CC[C@@H]3CCN(C4CC(c5cc(F)cc(F)c5)C4)C[C@@H]3C(=O)O)c2c1
b O=c1cc(OCc2ccccc2)ccn1-c1ccc(OCCN2CCCC2)cc1
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}
4-phenylmethoxy-1-[4-(2-pyrrolidin-1-ylethoxy)phenyl]pyridin-2-one