Problem: Is "Harry knew much less than Harry did." true if "Of one thing Mark was sure. Harry knew much less than he did."?
Answer: no

Problem: Is "My great-grandfather is a remarkable man." true if "Fred is the only man still alive who remembers my great-grandfather. He is a remarkable man."?
Answer: no

Problem: Is "Carol believed that Rebecca suspected that Carol had stolen the watch." true if "Carol believed that Rebecca suspected that she had stolen the watch."?
Answer: yes

Problem: Is "Kate had cancer and presented several options for future treatment." true if "Dr. Adams informed Kate that she had cancer and presented several options for future treatment."?
Answer:
yes