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) CN1C(=O)[C@@H](NC(=O)c2n[nH]c(Cc3ccccc3)n2)COc2ccccc21
(b) CC(C(O)c1ccc2c(c1)OCC(=O)N2)N1CCC(O)(c2ccc(F)cc2)CC1
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}
7-[2-[4-(4-fluorophenyl)-4-hydroxypiperidin-1-yl]-1-hydroxypropyl]-4H-1,4-benzoxazin-3-one