Q: Keywords: cub, plain, run
What is a sentence that includes all these keywords?

A: female walking and cubs running on the green plains late afternoon

Q: Keywords: cat, lie, stripe
What is a sentence that includes all these keywords?

A: striped cat lies on a plaid

Q: Keywords: aircraft, airport, leave
What is a sentence that includes all these keywords?

A:
the aircraft is scheduled to leave airport