Task: Please answer the multiple choice question.
Question: Which molecules are a hERG blocker?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a: O=C(Nc1ccccc1)C1=C(O)CC(c2ccoc2)CC1=Nc1ccccc1
b: Cc1ccc(Nc2nc(N)nc(CN3CCN(Cc4ccccc4)CC3)n2)cc1Cl
c: O=[N+]([O-])c1ccc2nn(Cc3ccccc3)cc2c1
Answer: b
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}