Task: Please answer the multiple choice question.
Question: Which molecules are a human ether-à-go-go related gene (hERG) blocker (<10uM)?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a. CCOC(=O)C1=C(CN2CCOC(CCC(=O)O)C2)NC(c2nccs2)=NC1c1ccc(F)cc1Br
b. COC(=O)N1CCc2c(nc(C)n2[C@@H]2C[C@@H]3CC[C@H](C2)N3CC[C@H](NC(C)=O)c2cccc(F)c2)C1
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}
methyl 1-[(1R,5S)-8-[(3S)-3-acetamido-3-(3-fluorophenyl)propyl]-8-azabicyclo[3.2.1]octan-3-yl]-2-methyl-6,7-dihydro-4H-imidazo[4,5-c]pyridine-5-carboxylate