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, b, c, d, or e without using any other words.
Options:
(a) O=C(C1CCN(c2nccc(C(F)(F)F)n2)CC1)N1CCC(NC2CCC(O)(c3ccc(-c4ncccn4)cn3)CC2)C1
(b) O=c1ccnc(NCC2CCN(c3nc4ccccc4n3Cc3ccc(F)cc3)CC2)[nH]1
(c) COc1cc(/C=C/c2nc3cc(Cl)ccc3c(=O)[nH]2)ccc1-n1cnc(C)c1
(d) Cc1c(O)ccc2c1C(=O)N(Cc1ccccc1-c1ccccc1)C2C(=O)NC(C)(C)C
(e) COc1ccc2nccc(NC(=O)[C@H]3CC[C@H](NCc4ccc5c(c4)OCCO5)CC3)c2c1
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}
2-[[1-[1-[(4-fluorophenyl)methyl]benzimidazol-2-yl]piperidin-4-yl]methylamino]-1H-pyrimidin-6-one