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] COc1cccc(N2CCN(CCN3CCC(C(F)(F)F)CC3)C2=O)c1
[b] Cc1ccc(Nc2nc3ccc(N4CCN(C)CC4)cc3[nH]2)nc1
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}
6-(4-methylpiperazin-1-yl)-N-(5-methylpyridin-2-yl)-1H-benzimidazol-2-amine