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.) Nc1nc(-c2ccco2)nn1S(=O)(=O)c1ccc(Cl)cc1
b.) CCNC(=S)NNC(=O)CCc1nc2cc(Cl)ccc2n(Cc2ccccc2)c1=O
c.) Cc1cc(C(=O)Nc2ccc(Br)cn2)sc1C
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}