Task: Please answer the multiple choice question.
Question: Which molecule has the highest Caco-2 cell permeability?
Constraint: Even if you are uncertain, you must pick either a or b without using any other words.
Options:
(a) O=C(O)C(O)Cc1ccc(O)c(O)c1
(b) N=C(N)c1cccc(-n2nc(C(F)(F)F)cc2C(=O)Nc2ncc(-c3ccccc3S(N)(=O)=O)cn2)c1
Answer: a
Task: Please answer the multiple choice question.
Question: Which molecule has the highest {permeability__names__noun}?
Constraint: Even if you are {#uncertain|not sure!}, you must pick either {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{SMILES%permeability%}
Answer: {%multiple_choice_result}