Q: Keywords: burn, fat, help
What is a sentence that includes all these keywords?

A: foods that help in burning fat

Q: Keywords: detect, system, water
What is a sentence that includes all these keywords?

A: water detected in a planet outside our solar system

Q: Keywords: island, moor, yacht
What is a sentence that includes all these keywords?

A:
few yachts moored at a marina in island