Q: Keywords: building, eat, grass, zebra
What is a sentence that includes all these keywords?

A: a single zebra eating some grass close to a building

Q: Keywords: detail, sky, wall
What is a sentence that includes all these keywords?

A: detail of an old weathered stone wall by a blue sky

Q: Keywords: lot, track, train, travel, tree
What is a sentence that includes all these keywords?

A:
A train traveling down tracks near lots of trees.