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, b, or c without using any other words.
Options:
(a) O=S(=O)(c1ccccc1)c1ccccn1
(b) O=C(O)C1CSC(c2ccccc2F)N1
(c) COc1cc(SSc2cc(OC)cc([N+](=O)[O-])c2N)c(N)c([N+](=O)[O-])c1
Answer: 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}