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: COc1ccc(CCC(=O)N2CCN(S(=O)(=O)c3ccc4ccccc4c3)CC2)cc1
b: Cc1occc1-c1nnc(SCc2nnc(-c3ccc(Cl)cc3)o2)n1C
c: CCCn1c(SCC(=O)Nc2c(C)cccc2C)nnc1C(C)C
d: CN1CCN(c2ccccc2NC(=O)COc2ccc(Br)cc2)CC1
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}