Task: Please answer the multiple choice question.
Question: Which molecules are a hERG blocking compound (IC50 less than 10uM)?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a. c1ccc(-c2c(-c3ccccc3)n(Cc3ccco3)c3ncnc(NCCCn4ccnc4)c23)cc1
b. Oc1c(C=Nc2cccnc2)sc2ccccc12
Answer: a
Task: Please answer the multiple choice question.
Question: Which molecules are {herg_inhib#not &NULL}a {herg_inhib__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_inhib%}
Answer: {%multiple_choice_result}