Task: Please answer the multiple choice question.
Question: Which molecules are a hERG blocker (<10uM)?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
[a] N#Cc1ccc(-c2ccc(C[C@@H](C#N)NC(=O)[C@@H]3CNCCCO3)cc2)cc1
[b] CC(C)N(CCCNC(=O)Nc1ccc(C(C)(C)C)cc1)C[C@H]1O[C@@H](n2cc(Br)c3c(N)ncnc32)[C@H](O)[C@@H]1O
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}
1-[3-[[(2R,3S,4R,5R)-5-(4-amino-5-bromopyrrolo[2,3-d]pyrimidin-7-yl)-3,4-dihydroxyoxolan-2-yl]methyl-propan-2-ylamino]propyl]-3-(4-tert-butylphenyl)urea