Task: Please answer the multiple choice question.
Question: Which molecules are a human ether-à-go-go related gene (hERG) blocking compound (<10uM)?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a: O=c1ccc2ncc(F)c3c2n1CC3(O)CC12CCC(NCc3ccc4c(n3)OCCO4)(CC1)CO2
b: CCOC(=O)[C@H]1[C@@H](OC(=O)c2ccccc2)C[C@H]2CC[C@H]1N2C
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}
ethyl(1R,2R,3S,5R)-8-methyl-3-(phenylcarbonyloxy)-8-azabicyclo[3.2.1]octane-2-carboxylate