Q: Keywords: ceremony, lay, politician
What is a sentence that includes all these keywords?

A: politician will replace politician at the ceremony where he will lay a wreath on behalf

Q: Keywords: carrot, celery, cucumber, tray
What is a sentence that includes all these keywords?

A: Vegetable tray that contains carrots, cucumbers, peppers, tomatoes and celery

Q: Keywords: doctor, operation, watch
What is a sentence that includes all these keywords?

A:
A doctor watches an operation to learn how to do it.