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 or b without using any additional words.
Options:
a) O=C(O)c1cccc(N2CCC(CN3CCC(Oc4ccc(Cl)c(Cl)c4)CC3)CC2)c1
b) CC1(C)[C@H](Nc2c(C(N)=O)cnn3cc(-c4ccccc4)cc23)CC[C@]1(C)N
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-[[(1R,3S)-3-amino-2,2,3-trimethylcyclopentyl]amino]-6-phenylpyrrolo[1,2-b]pyridazine-3-carboxamide