Task: Please answer the multiple choice question.
Question: Which molecules are a human ether-à-go-go related gene (hERG) blocker?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
(a) CC(=O)c1cccc(NC(=S)NC(=O)Cc2ccccc2)c1
(b) N=c1c(C(=O)NC2CCCCC2)cc2c(=O)n3ccccc3nc2n1Cc1ccc(F)cc1
(c) COC(=O)c1nnn(-c2ccccc2)c1N
(d) CCOc1ccccc1C1C2CCCCC2(O)CCN1C(=O)c1cccs1
Answer: b
Task: Please answer the multiple choice question.
Question: Which molecules are {herg_inhib#not &NULL}a {herg_inhib__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_inhib%}
Answer: {%multiple_choice_result}