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.) O=C(OCC(=O)N1CCN(C(=O)c2ccco2)CC1)c1cc(-c2ccccc2)nc2ccccc12
b.) CN(C)S(=O)(=O)c1ccc(Cl)c(C(=O)NC2CCCCCCC2)c1
c.) COC(=O)Cn1c(=O)c2c(nc3n2CCCN3Cc2ccccc2)n(C)c1=O
d.) CCCC(C(=O)NCc1ccco1)N(C(=O)CNS(=O)(=O)c1ccccc1)c1ccccc1OC
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}