Task: Please answer the multiple choice question.
Question: Which molecules are a hERG blocker?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
a.) CCOc1ccc(NC(=O)CN(c2cccc(C(F)(F)F)c2)S(C)(=O)=O)cc1
b.) O=C(NCc1ccc(F)cc1)C1CCN(c2cnccn2)CC1
c.) COc1ccccc1N1CCN(C(=O)c2ccc(Cn3c(=S)[nH]c4cc5c(cc4c3=O)OCO5)cc2)CC1
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}