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 NC(C(=O)N1CCC(F)(F)C1)C1CCCCC1
b C[C@@H](CO)Oc1cc(Oc2ccc(C(=O)N3CCC3)cc2)cc(C(=O)Nc2nccs2)c1
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}
2-amino-2-cyclohexyl-1-(3,3-difluoropyrrolidin-1-yl)ethanone