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 other words.
Options:
(a) CCN(C(C)=O)c1cccc(-c2ccnc3c(C#N)cnn23)c1
(b) CC(C)(C)[C@]1(O)CC2OC(=O)CC23C(=O)OC2OC(=O)[C@H](O)C231
Answer: a
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}
N-[3-(3-cyanopyrazolo[1,5-a]pyrimidin-7-yl)phenyl]-N-ethylacetamide