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, c, or d without using any additional words.
Options:
(a) O=C(Nc1ccc2ccccc2c1)N1CCCN(CCOc2ccccc2)CC1
(b) CCOC(=O)C(NC(=O)Nc1ncccn1)(Oc1ccccc1)C(F)(F)F
(c) COc1ccc(OC(C)C(=O)N2CCc3ccccc3C2)cc1
(d) c1ccc(-n2nnnc2Sc2n[nH]c(-c3ccncc3)n2)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}