Task: Please answer the multiple choice question.
Question: Which molecules are 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=C(NCc1ccc(OC(F)(F)F)cc1)C1c2ccccc2C(=O)N1CCc1ncccn1
b: CNCc1ccccc1Oc1ccc(Cl)cc1OC
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}
1-[2-(4-chloro-2-methoxyphenoxy)phenyl]-N-methylmethanamine