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, c, or d without using any additional words.
Options:
a CN(Cc1ccccc1)C1=CC(=[N+]2CCCCC2)CC(C)(C)C1.[I-]
b CCN(CC(=O)Nc1ccc(C(C)=O)cc1)CC(=O)Nc1ccccc1C(F)(F)F
c O=C(CCNS(=O)(=O)c1cccc2nsnc12)NCc1cccs1
d COc1ccc(S(=O)(=O)Nc2ccc(S(=O)(=O)N3CCOCC3)cc2)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}