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 CCc1nc2cc3c(cc2o1)CCN(CCCSc1nnc(-c2cccnc2)n1C)CC3
b COc1ccccc1N1CCN(CCCCOc2ccc3c(C)cc(=O)oc3c2)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}
7-[4-[4-(2-methoxyphenyl)piperazin-1-yl]butoxy]-4-methylchromen-2-one