Task: Please answer the multiple choice question.
Question: Which molecules are not a hERG blocker (<10uM)?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
(a) O=S(=O)(NCCN1CC2CN(CCc3cccc(F)c3)CC(C1)O2)c1ccc(F)cc1
(b) COCCN(C)Cc1csc(-c2cn(CC3CCCCC3)c3c(Cl)cccc23)n1
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-fluoro-N-[2-[7-[2-(3-fluorophenyl)ethyl]-9-oxa-3,7-diazabicyclo[3.3.1]nonan-3-yl]ethyl]benzenesulfonamide