Task: Please answer the multiple choice question.
Question: Which molecules are not a human ether-à-go-go related gene (hERG) blocker (<10uM)?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a: CC1(C)[C@H](Nc2c(C(N)=O)cnn3cc(-c4ccncc4)cc23)CC[C@]1(C)N
b: c1ccc(CN(c2cccc3[nH]ccc23)C2CCNC2)cc1
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-[[(1R,3S)-3-amino-2,2,3-trimethylcyclopentyl]amino]-6-pyridin-4-ylpyrrolo[1,2-b]pyridazine-3-carboxamide