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) Cl.O=c1n(C[C@@H](O)CO)c2ccccc2n1C1CCN(C[C@H]2[C@H]3CC[C@H](C3)C23CC3)CC1
(b) CN(C(=O)Cc1ccc(-n2cnnn2)cc1)C1CCN(Cc2ccc(C(F)(F)F)cc2)CC1F
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}
1-[(2R)-2,3-dihydroxypropyl]-3-[1-[[(1S,2S,4R)-spiro[bicyclo[2.2.1]heptane-3,1'-cyclopropane]-2-yl]methyl]piperidin-4-yl]benzimidazol-2-one;hydrochloride