Q: Keywords: air, elephant, stick, trunk
What is a sentence that includes all these keywords?

A: An elephants very long trunk sticking up into the air.

Q: Keywords: garden, stone, tree
What is a sentence that includes all these keywords?

A: waterfall in the garden with stones and trees

Q: Keywords: engine, side, track, tree
What is a sentence that includes all these keywords?

A:
Multiple orange train engines on tracks with trees on each side.