Task: Please answer the multiple choice question.
Question: Which molecule has the highest Caco-2 cell permeability?
Constraint: Even if you are not sure, you must pick either a or b without using any other words.
Options:
a. O=C1CCCN1CCCCN1CCN(c2cc(C(F)(F)F)ccn2)CC1
b. COCc1ccc2c(C(C(=O)NS(=O)(=O)c3ccc(C)cc3OC)c3ccc4c(c3)OCO4)cn(C)c2c1
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}
1-[4-[4-[4-(trifluoromethyl)pyridin-2-yl]piperazin-1-yl]butyl]pyrrolidin-2-one