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) CC(=O)Nc1ccc(CN2CCN(CCc3ccccc3)C(CCO)C2)cc1
b) O=C(COC(=O)c1ccc(NS(=O)(=O)c2cccs2)cc1O)Nc1nc2ccccc2s1
c) Cc1ccc(CNC(=O)CS(=O)Cc2nc(-c3ccccc3C)oc2C)cc1
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}