question: "John couldn't see the stage with Billy in front of him because he is so tall." is true.
So, is "Billy is so tall." true as well?

prediction: yes

question: "Bill passed the gameboy to John because his turn was over." is true.
So, is "John's turn was over." true as well?

prediction: no

question: "The painting in Mark's living room shows an oak tree. It is to the right of the bookcase." is true.
So, is "The oak tree is to the right of the bookcase." true as well?

prediction: no

question: "Bob paid for Charlie's college education. He is very grateful." is true.
So, is "Charlie is very grateful." true as well?

prediction:
yes