Q: Keywords: carriage, carry, wait
What is a sentence that includes all these keywords?

A: As they wait for another carriage, someone joins them, carrying a cactus.

Q: Keywords: emit, fly, stream
What is a sentence that includes all these keywords?

A: A plane emitting smoke stream flying over a mountain.

Q: Keywords: fall, rain, sea
What is a sentence that includes all these keywords?

A:
rain falls in the distance over sea .