Problem: Jane knocked on Susan 's door but *she* did not answer.

Are "she" and "Jane" the same?
Answer: no

Problem: 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.

Are "her" and "mistress" the same?
Answer: no

Problem: The boy continued to whip the pony , and eventually the pony threw him over. John laughed out quite loud. "Served *him* right," he said.

Are "him" and "boy" the same?
Answer: yes

Problem: The actress used to be named Terpsichore , but she changed it to Tina a few years ago, because she figured *it* was easier to pronounce.

Are "it" and "Tina" the same?
Answer:
yes