Task: Please answer the multiple choice question.
Question: Which molecules are a hERG blocking compound (<10uM)?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
(a) CCCCNc1ncc2c(-c3ccc(S(=O)(=O)NC)cc3)nn(C3CCC(O)CC3)c2n1
(b) CN1CCN(CCCc2cc(-c3cccc(C(F)(F)F)c3)nc(C#N)n2)CC1
(c) NC1=NCC2c3ccccc3Cc3ccccc3N12
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}
4-[3-(4-methylpiperazin-1-yl)propyl]-6-[3-(trifluoromethyl)phenyl]pyrimidine-2-carbonitrile