Task: Please answer the multiple choice question.
Question: Which molecules are 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) O=C(CNc1ncnc2ccc(C(F)(F)F)cc12)NC1CN(C2CCC(O)(c3cncs3)CC2)C1
(b) C[C@@H]1NC(c2ccc(=O)n(C(F)F)c2)=N[C@@]1(c1ccc(F)cc1)c1ccc(F)nc1
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-(difluoromethyl)-5-[(4S,5S)-4-(4-fluorophenyl)-4-(6-fluoropyridin-3-yl)-5-methyl-1,5-dihydroimidazol-2-yl]pyridin-2-one