Task: Please answer the multiple choice question.
Question: Which molecules are not 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 O=[N+]([O-])c1cn2c(n1)O[C@@H](COc1ccc(-c3ccc(F)cc3)nc1)CC2
b O=C1COc2ccccc2N1CCCN1CCC(n2c(=O)[nH]c3cnccc32)CC1
Answer: a, 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}
(7R)-7-[[6-(4-fluorophenyl)pyridin-3-yl]oxymethyl]-2-nitro-6,7-dihydro-5H-imidazo[2,1-b][1,3]oxazine