Task: Please answer the multiple choice question.
Question: Which molecules are not active against HIV?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a: Oc1c([Si](c2ccccc2)(c2ccccc2)c2ccccc2)cc2ccccc2c1-c1c(O)c([Si](c2ccccc2)(c2ccccc2)c2ccccc2)cc2ccccc12
b: Cc1cn(C2CC(N=[N+]=[N-])C(COC(=O)CCCCCCCCCCCF)O2)c(=O)[nH]c1=O
Answer: a
Task: Please answer the multiple choice question.
Question: Which molecules are {activity_HIV#not &NULL}{activity_HIV__names__adjective}?
Constraint: You must select none, one or more options from {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{SMILES%activity_HIV%}
Answer: {%multiple_choice_result}