Task: Please answer the multiple choice question.
Question: Rank these molecules from shortest to longest drug half life time in humans after IV administration.
Constraint: You must select all options from a or b without using any additional words.
Options:
a CCN(C(C)=O)c1cccc(-c2ccnc3c(C#N)cnn23)c1
b CN(C)C(=N)NC(=N)N
Answer: b
Task: Please answer the multiple choice question.
Question: Rank these molecules from shortest to longest {half_life_duration__names__noun}.
Constraint: You must select all options from {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{SMILES%half_life_duration%}
Answer: {%multiple_choice_result}
3-carbamimidoyl-1,1-dimethylguanidine