Task: Please answer the multiple choice question.
Question: Which molecules are not a human ether-à-go-go related gene (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(Nc1ccc2c(c1)OCO2)C1CC(=O)N(c2ccc3c(c2)OCCO3)C1
(b) O=C(c1ccc2snnc2c1)N1CCN(c2ccccn2)CC1
(c) Nc1ccc(CCN2CCN(c3cccc(C(F)(F)F)c3)CC2)cc1
(d) Cc1ccc(S(=O)(=O)Nc2ccc(N3CCOCC3)cc2)cc1C
Answer: a, b, 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}