Adverb
detrás
behind, at the back
"Siempre anda detrás de lo mismo."
He's always chasing the same thing.
Write it
Write a sentence with detrás in it, whatever's on your mind.
It doesn't have to be perfect
Short story
A three-sentence story with detrás in it. New one every time.
Couldn't write one just now - try again in a moment.