Q: Keywords: moon, planet, ring
What is a sentence that includes all these keywords?

A: planet has no moons or rings

Q: Keywords: building, glass, reflect, sky
What is a sentence that includes all these keywords?

A: glass encased office buildings reflect the sky

Q: Keywords: eat, leafs, tree
What is a sentence that includes all these keywords?

A:
giraffe eating leafs from the tree