User: I'm searching for the SMILES of a molecule that is not active against HIV?
Assistant: This is a molecule that is not active against HIV: CCOc1c(Cc2ccccc2)c(=O)nc2c(-c3ccccc3)cncn12
User: I'm {#searching|looking!} for the {SMILES__description} of a molecule that is {activity_HIV#not &NULL}{activity_HIV__names__adjective}?
Assistant: This is a molecule that is {activity_HIV#not &NULL}{activity_HIV__names__adjective}: {SMILES#}
3-benzyl-4-ethoxy-9-phenylpyrimido[1,6-a]pyrimidin-2-one