Q: .

Of one thing Mark was sure. Harry knew much less than *he* did.

Do "he" and "Harry" mean the same thing?
A: no
Q: .

Mark told Pete many lies about himself, which Pete included in his book. *He* should have been more skeptical.

Do "He" and "Pete" mean the same thing?
A: yes
Q: .

The city councilmen refused the demonstrators a permit because *they* feared violence.

Do "they" and "The city councilmen" mean the same thing?
A:
yes