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.) COC(=O)c1ccc(CSc2ccc3nnc(-c4ccccc4)n3n2)o1
b.) CC1CCN(S(=O)(=O)N2CCC(C(=O)NCCN3CCOCC3)CC2)CC1
c.) CC(=O)c1c(C)[nH]c(C(=O)NCc2ccco2)c1C
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}