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 additional words.
Options:
a: CN(Cc1nc2ccccc2c(=O)[nH]1)Cc1nnc(-c2ccccc2)o1
b: N#Cc1ccc(Cn2cncc2CNC2CCN(C(=O)c3cccc(Cl)c3)C2)cc1
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}
2-[[methyl-[(5-phenyl-1,3,4-oxadiazol-2-yl)methyl]amino]methyl]-3H-quinazolin-4-one