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 additional words.
Options:
a) C=CCn1c(SCC(=O)N2CCN(c3ccc(F)cc3)CC2)nnc1-c1cccs1
b) CN(C)S(=O)(=O)c1ccc(C(=O)Nc2nc(-c3cc4ccccc4o3)cs2)cc1
c) Cn1c2c(c(=O)[nH]c1=O)C(c1ccc(O)cc1)C1=C(N2)c2ccccc2C1=O
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}