Task: Please answer the multiple choice question.
Question: Which molecules are not active against the human immunodeficiency virus?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a: Nc1nc(S)nc(O)c1N=O
b: CC(=O)SCC1OC(n2cc(C)c(=O)[nH]c2=O)CC1=NO
Answer: a, b
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}
S-[[3-hydroxyimino-5-(5-methyl-2,4-dioxopyrimidin-1-yl)oxolan-2-yl]methyl] ethanethioate