Task: Please answer the multiple choice question.
Question: Which molecules are not a human ether-à-go-go related gene (hERG) blocking compound (<10uM)?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a: C[C@]1(CS(=O)(=O)N2CCC(Oc3ccc(OC(F)(F)C(F)F)cc3)CC2)NC(=O)NC1=O
b: CCCCN1CCC[C@H]1Cn1nc(Cc2ccc(Cl)cc2)c2ncccc2c1=O
c: N#Cc1cnc(Nc2cc(NC[C@@H]3CNCCO3)c(-c3cccc(F)c3)cn2)cn1
d: O=C(CCC[NH+]1CC=C([N+]2=c3ccccc3=NC2=O)CC1)c1ccc(F)cc1
Answer: a
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}
(5S)-5-methyl-5-[[4-[4-(1,1,2,2-tetrafluoroethoxy)phenoxy]piperidin-1-yl]sulfonylmethyl]imidazolidine-2,4-dione