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: O=C(CCc1nc2cccnc2n1Cc1ccccc1)NCCc1ccc(Cl)cc1
b: COc1ccc(N(CC(=O)NN=C2CCCC2)S(=O)(=O)c2ccccc2)cc1Cl
c: O=C(CN1CCCC1)Nc1ccccc1Sc1ccc(Cl)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}