Q: .

The boy continued to whip the pony , and eventually the pony threw him over. John laughed out quite loud. "Good for *him* ," he said.

Do "him" and "John" mean the same thing?
A: no
Q: .

It is not easy to space buttonholes exactly the same distance apart, and it is very difficult to cut them precisely the right size . The tiniest slip of the scissors will make the hole too large, and even one thread uncut will leave *it* too small.

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

The scientists are studying three species of fish that have recently been found living in the Indian Ocean. *They* appeared two years ago.

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