Problem: Do "Sam" and "he" point to the same thing in the following sentence?

If the con artist has succeeded in fooling Sam , *he* would have lost a lot of money.
****
A: yes

Problem: Do "mistress" and "her" point to the same thing in the following sentence?

Our mistress hired a room for my crippled sister Nelly , and she gave *her* knitting and needlework when she was able to do it, and when she was ill she sent her dinners and many nice comfortable things and was like a mother to her.
****
A: no

Problem: Do "the hole" and "it" point to the same thing in the following sentence?

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.
****
A: yes

Problem: Do "the book" and "it" point to the same thing in the following sentence?

Sara borrowed the book from the library because she needs it for an article she is working on. She writes *it* when she gets home from work.
****
A:
no