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 Cc1cc2ccc(N)nc2nc1O
b Cc1cn(C2CC3C(COC(CC[Se]c4ccccc4)N3O)O2)c(=O)[nH]c1=O
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}
1-[1-hydroxy-2-(2-phenylselanylethyl)-2,4,4a,6,7,7a-hexahydrofuro[3,2-d][1,3]oxazin-6-yl]-5-methylpyrimidine-2,4-dione