Question: Cats are smarter than dogs because they always land on their feet.
Based on this sentence, who is they?

Answer: Cats

Question: The Board of Directors fired the management from the company since they were not managing the company well.
Based on this sentence, who is they?

Answer: the management

Question: The space marines killed the aliens because they were ordered to.
Based on this sentence, who is they?

Answer: The space marines

Question: The ball hit the window and Bill caught it.
Based on this sentence, who is it?

Answer:
The ball