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: Cc1cc(CNc2nc(N)nc3ccn(Cc4ccc(F)cn4)c23)no1
b: COC1=CC(C)=C[C@@H](C)[C@@H](O)[C@@H](C)CC(C)=CC=C[C@H](OC)[C@@H]([C@@H](C)[C@@H](O)[C@H](C)[C@@]2(O)C[C@@H](O)[C@H](C)[C@@H](C(C)C)O2)OC1=O
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}
5-[(5-fluoropyridin-2-yl)methyl]-4-N-[(5-methyl-1,2-oxazol-3-yl)methyl]pyrrolo[3,2-d]pyrimidine-2,4-diamine