Task: Please answer the multiple choice question.
Question: Which molecules are a hERG blocker (<10uM)?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a) O=C(NC1CCCc2c1[nH]c1ccc(Cl)cc21)c1ccccc1F
b) CCOC(=O)C1CCN(C(=N)c2ccc(C(=O)Nc3c(OC)cc(Cl)cc3C(=O)Nc3ccc(Cl)cn3)c(F)c2)CC1
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 1-[4-[[4-chloro-2-[(5-chloropyridin-2-yl)carbamoyl]-6-methoxyphenyl]carbamoyl]-3-fluorobenzenecarboximidoyl]piperidine-4-carboxylate