Q: Keywords: mountain, ski, skier
What is a sentence that includes all these keywords?

A: Three skiers are skiing on a snowy mountain.

Q: Keywords: cat, fish, plate
What is a sentence that includes all these keywords?

A: cat and a big fish on a plate

Q: Keywords: forest, train, tunnel
What is a sentence that includes all these keywords?

A:
A passenger train traveling through a tunnel covered with a forest.