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 other words.
Options:
a) COc1ccc(NC2CCN(C3CC(=O)N(c4ccc(F)c(Cl)c4)C3=O)CC2)cc1
b) CC(C)NC(=O)c1onc(CSc2cccc3ccccc23)c1C(=O)O
c) Cc1ccc(C(=O)Nc2ncc3c(n2)CC(c2ccco2)CC3=O)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}