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=C1NCc2ccc(OCCCCN3CCN(c4cccc5cc(F)ccc45)CC3)cc21
b.) C[C@@H](C1CCC(N(C)C(=O)C2CC2)CC1)[C@H]([NH3+])C(=O)N1CC[C@H](F)C1
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}
6-[4-[4-(6-fluoronaphthalen-1-yl)piperazin-1-yl]butoxy]-2,3-dihydroisoindol-1-one