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: CC(=C(F)C(=O)Nc1ccc(-c2ccccc2S(N)(=O)=O)cc1)c1ccc(C(=N)N)cc1
b: O=C(O)[C@H](Cc1ccccc1)N1CCC(CN2CCC(Oc3ccc(CO)c(Cl)c3)CC2)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}
3-(4-carbamimidoylphenyl)-2-fluoranyl-N-[4-(2-sulfamoylphenyl)phenyl]but-2-enamide