Task: Please answer the multiple choice question.
Question: Which molecules are not a human ether-à-go-go related gene (hERG) blocking compound?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a.) CCc1nn2c(=O)c(S(=O)(=O)Nc3ccccc3)c(C)nc2s1
b.) CCOC(=O)C1CCN(CCC(=O)Nc2cc(C)cc(C)c2)CC1
c.) CCOc1ccc(CN(C)CC(=O)NCc2ccccc2Cl)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}