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 additional words.
Options:
[a] COc1ccc2c(OC[C@H](O)CO)nc(C#N)c(-c3ccccc3)c2c1
[b] O=c1ccc(OCCCN2CCCCC2)nn1-c1ccc(F)c(Cl)c1
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}
2-(3-chloro-4-fluorophenyl)-6-(3-piperidin-1-ylpropoxy)pyridazin-3-one