Task: Please answer the multiple choice question.
Question: Which molecules are a hERG blocking compound (IC50 < 10uM)?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
(a) CCCCCn1c(CN2CCN(Cc3ccccc3)CC2)nc2c1c(=O)n(C)c(=O)n2C
(b) O=C(O)C1CN(c2nc(Cl)ccc2[N+](=O)[O-])C1
(c) CCOC(=O)/C(C#N)=C\c1cc(OC)c(OC)cc1[N+](=O)[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}