Task: Please answer the multiple choice question.
Question: Which molecules are a hERG blocker?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
[a] O=C([O-])C1=C[N+](C2CC2)=C2C=C(N3CC[NH2+]CC3)C(F)=C[C@H]2C1=O
[b] COc1cc2c(Oc3ccc4[nH]c(C)c(C)c4c3)ncnc2cc1OCCN1CCN(CC(C)=O)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}
1-[4-[2-[4-[(2,3-dimethyl-1H-indol-5-yl)oxy]-6-methoxyquinazolin-7-yl]oxyethyl]piperazin-1-yl]propan-2-one