Problem: Is "I couldn't get the chewing gum out." true if "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."?
Answer: yes

Problem: Is "Carol believed that Rebecca suspected that Rebecca had stolen the watch." true if "Carol believed that Rebecca suspected that she had stolen the watch."?
Answer: no

Problem: Is "Charlie is very hurt." true if "Bob paid for Charlie's college education, but now Charlie acts as though it never happened. He is very hurt."?
Answer: no

Problem: Is "Tom reached the bottom of the stairs." true if "Tom threw his schoolbag down to Ray after he reached the bottom of the stairs."?
Answer:
no