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 additional words.
Options:
a CC(C)N1CCC(Oc2ccc(N3CCN(C(=O)c4ccc(F)cc4F)CC3=O)cc2)CC1
b CSc1ncccc1C(=O)N1CCC(NCc2cncn2Cc2ccc(C#N)cc2)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}
4-(2,4-difluorobenzoyl)-1-[4-(1-propan-2-ylpiperidin-4-yl)oxyphenyl]piperazin-2-one