Task: Please answer the multiple choice question.
Question: Which molecules are not active against HIV?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a. CCCCCCCCCCCCSS(=O)(=O)c1ccccc1
b. CCCCCCCCCCCCCCCC(=O)Nc1ccn(C2CSC(COP(=O)(O)OC3CC(n4ccc(NC(=O)CCCCCCCCCCCCCCC)nc4=O)OC3CO)O2)c(=O)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}