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 other words.
Options:
a.) O=c1cc(OCc2ccccc2F)ccn1-c1ccc(OCCN2CCCC2)cc1
b.) CC(C(=O)O)c1ccc(CN2CCC(COC(=O)c3c4n(c5ccccc35)CCCO4)CC2)cc1
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}
4-[(2-fluorophenyl)methoxy]-1-[4-(2-pyrrolidin-1-ylethoxy)phenyl]pyridin-2-one