Task: Please answer the multiple choice question.
Question: Which molecules are a hERG blocking compound (<10uM)?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
[a] Cn1nc(NCC(=O)NC2CN(C3CCC(NS(C)(=O)=O)CC3)C2)c2cc(C(F)(F)F)ccc21
[b] COc1ccc2c(c1)CCC1(CCN(CCc3ccc(F)cc3F)CC1)O2
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'-[2-(2,4-difluorophenyl)ethyl]-6-methoxyspiro[3,4-dihydrochromene-2,4'-piperidine]