Q: .

I was trying to open the lock with the key , but someone had filled the keyhole with chewing gum, and I couldn't get *it* out.

Do "it" and "the key" mean the same thing?
A: no
Q: .

Jackson was greatly influenced by Arnold , though *he* lived two centuries later.

Do "he" and "Jackson" mean the same thing?
A: yes
Q: .

The police arrested all of the gang members . *They* were trying to run the drug trade in the neighborhood.

Do "They" and "The police" mean the same thing?
A:
no