Q: Keywords: mankind, stain, window
What is a sentence that includes all these keywords?

A: stained glass window depicting builder saving mankind

Q: Keywords: ceiling, clock, platform
What is a sentence that includes all these keywords?

A: A clock mounted to a ceiling next to a rail platform.

Q: Keywords: aircraft, operate, unit
What is a sentence that includes all these keywords?

A:
aircraft model was a naval fighter aircraft operated by military unit