Task: Please answer the multiple choice question.
Question: Which molecules are 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: COc1cccc(N2CCN(c3ccc4nnc(CCC(=O)N5CCC(C)CC5)n4n3)CC2)c1
b: Cc1cc(C)cc(OC2CCCCC2NS(=O)(=O)c2ccccc2)c1
c: CCOC(=O)c1ccc(NC(=O)c2ccc3c(c2)OCO3)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}