Task: Please answer the multiple choice question.
Question: Which molecules are not a hERG blocking compound (<10uM)?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
(a) Nc1ccc(-c2ccsc2)cc1NC(=O)c1ccc(N2CCC3(CCNC3)CC2)nc1
(b) Cc1cc(Nc2cc(N3CCN(C)CC3)nc(C=Cc3ccccc3)n2)n[nH]1
Answer: 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-methyl-1H-pyrazol-3-yl)-2-(2-phenylethenyl)pyrimidin-4-amine