Task: Please answer the multiple choice question.
Question: Which molecules are active against HIV?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a N=S(=O)(c1ccccc1)c1ccccc1[N+](=O)[O-]
b CN(C)c1ccc(C=C(C#N)c2ccc(Cl)cc2Cl)cc1
c COc1ccc(C2OCC3OC(n4cc(C)c(=O)[nH]c4=O)CC3N2O)cc1
d CCc1c(Cc2ccccc2)n(COCCO[Si](C)(C)C(C)(C)C)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}