Task: Please answer the multiple choice question.
Question: Which molecules are 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. O=C(O)c1cccc(SS(=O)(=O)c2cccc(C(=O)O)c2)c1
b. CSc1nc(O)c(N)c(NC2OCC(O)C(O)C2O)n1
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}