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, or c without using any additional words.
Options:
(a) O=C(Cn1ccccc1=O)Nc1ccc(Cl)c(S(=O)(=O)N2CCCCC2)c1
(b) Cc1c(NC(=S)NC(=O)c2cccc(Cl)c2)c(=O)n(-c2ccccc2)n1C
(c) Cc1ccccc1OCc1nnc(SCC(=O)O)n1Cc1ccccc1
Answer: a
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}