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) CC(C)(C)NC(=O)Nc1cccc(Nc2ncc(F)c(NC(C)(C)CO)n2)c1
b) Cc1ncoc1-c1nnc(SCCCN2CC3CC3(c3ccc(Cl)cc3)C2)n1C
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}
1-tert-butyl-3-[3-[[5-fluoro-4-[(1-hydroxy-2-methylpropan-2-yl)amino]pyrimidin-2-yl]amino]phenyl]urea