Question: If "Tom gave Ralph a lift to school so he wouldn't have to drive alone.", can we conclude that "Ralph wouldn't have to drive alone."?
Answer: no

Question: If "The cat was lying by the mouse hole waiting for the mouse, but it was too impatient.", can we conclude that "The cat was too impatient."?
Answer: yes

Question: If "John hired himself out to Bill to take care of him.", can we conclude that "John hired himself out to Bill to take care of Bill."?
Answer:
yes