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(/C=C/c1ccc(Cl)cc1)N1CCN(c2ccc([N+](=O)[O-])c(N3CCOCC3)c2)CC1
[b] NNC(=O)CCN1CCCCC1
[c] Cc1ccc(C2NC(=O)NC3=C2CCc2ccccc23)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}