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 other words.
Options:
[a] O=C(Nc1ccc2oc(-c3ccccc3F)nc2c1)c1ccc([N+](=O)[O-])o1
[b] CCC(NS(=O)(=O)c1ccc(OC)cc1)C(=O)O
[c] CCC1=Nc2cc(C(=O)O)ccc2Sc2ccccc21
[d] CN(C)CCCNc1ccc(-c2cc(Nc3cccc(Cl)c3)ncn2)cn1
Answer: d
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}