Problem: In the storm, the tree fell down and crashed through the roof of my house. Now, I have to get *it* repaired.
Are "it" and "the tree" the same?
****
Answer: no

Problem: The politicians far away in Washington could not know the settlers so *they* must make rules to regulate them.
Are "they" and "settlers" the same?
****
Answer: no

Problem: Jim yelled at Kevin because *he* was so upset.
Are "he" and "Jim" the same?
****
Answer:
yes