Problem: John couldn't see the stage with Billy in front of him because *he* is so short.

Do "he" and "Billy" mean the same thing?

Answer: no

Problem: Sergeant Holmes asked the girls to describe the intruder . Nancy not only provided the policeman with an excellent description of the heavyset thirty-year-old prowler, but drew a rough sketch of *his* face.

Do "his" and "Sergeant Holmes" mean the same thing?

Answer: no

Problem: As Ollie carried Tommy up the long winding steps, *his* legs ached.

Do "his" and "Tommy" mean the same thing?

Answer:
no