Question:
Two puppies are playing with each other.
Some men are playing soccer.
Answer:
0

Question:
Dogs, he said, are second only to humans in the thoroughness of medical understanding and research.
He said that dogs are second only to humans in terms of being the subject of medical research.
Answer:
5

Question:
A dog swimming with a stick in it's mouth.
Dog swimming in the water with a stick in its mouth.
Answer:
5