Task: Please answer the multiple choice question.
Question: Which molecules are not a hERG blocker (<10uM)?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a. CC(C)c1nnc(N2CCN(c3ncc(OCc4ccncc4C#N)cn3)[C@H](C)C2)o1
b. CC(NC(=O)C1(N)CCN(c2ncnc3[nH]ccc23)CC1)c1ccc(F)cc1
Answer: a, b
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}
4-[[2-[(2R)-2-methyl-4-(5-propan-2-yl-1,3,4-oxadiazol-2-yl)piperazin-1-yl]pyrimidin-5-yl]oxymethyl]pyridine-3-carbonitrile