Q: Keywords: city, day, train
What is a sentence that includes all these keywords?

A: A freight train leaving a city during the day

Q: Keywords: control, lose, race
What is a sentence that includes all these keywords?

A: A motorcycle rider loses control of his motorcycle in a race.

Q: Keywords: embassy, front, gather
What is a sentence that includes all these keywords?

A:
demonstrators gather in front of the former embassy .