Task: Please answer the multiple choice question.
Question: Which molecules are not a human ether-à-go-go related gene (hERG) blocking compound?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a: O=C(NC1CCN(Cc2ccc3c(c2)OCO3)CC1)c1cc(=O)c2cc(F)ccc2o1
b: CCSc1ncccc1C(=O)N1CC[C@@H]([NH2+]Cc2cncn2Cc2ccc(C#N)cc2)C1=O
c: CC(=O)Nc1nnc(S(N)(=O)=O)s1
d: NC(=O)N1c2ccccc2C=Cc2ccccc21
Answer: c, d
Task: Please answer the multiple choice question.
Question: Which molecules are {herg_blocker#not &NULL}a {herg_blocker__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_blocker%}
Answer: {%multiple_choice_result}