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 other words.
Options:
a. COC1COCCC1N[C@@H]1C[C@H]2CCC[C@@]2(C(=O)N2CCc3ncccc3C2)C1
b. CCN(CC)Cc1ccc2c(c1)CCC(N1CCN(CCc3ccc(F)cc3)CC1=O)C2
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-[6-(diethylaminomethyl)-1,2,3,4-tetrahydronaphthalen-2-yl]-4-[2-(4-fluorophenyl)ethyl]piperazin-2-one