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) COc1ccc(Oc2ccnc3cc(-c4cnn(C5CCNCC5)c4)ccc23)cc1
(b) CCCCNC(=O)C1c2ccccc2C(=O)N1CC(C)c1ccc(Cl)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-(4-methoxyphenoxy)-7-(1-piperidin-4-ylpyrazol-4-yl)quinoline