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 COc1ccc2ncc(=O)n(CCN3CCC(NCc4cc5c(cn4)OCCO5)CC3)c2n1
b CN(C)C(=O)[C@@H](c1ccc(-c2ccc(F)cc2)cc1)[C@H](N)C(=O)N1CC[C@H](F)C1.O=C(O)C(F)(F)F
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}
4-[2-[4-(2,3-dihydro-[1,4]dioxino[2,3-c]pyridin-7-ylmethylamino)piperidin-1-yl]ethyl]-6-methoxypyrido[2,3-b]pyrazin-3-one