Problem: If "Tom gave Ralph a lift to school so he wouldn't have to drive alone.", does it follow that "Ralph wouldn't have to drive alone."?

Answer: no


Problem: If "There is a pillar between me and the stage, and I can't see it.", does it follow that "I can't see around the pillar."?

Answer: no


Problem: If "Joe has sold his house and bought a new one a few miles away. He will be moving out of it on Thursday.", does it follow that "He will be moving out of The new house on Thursday."?

Answer: no


Problem: If "The path to the lake was blocked, so we couldn't reach it.", does it follow that "We couldn't reach the lake."?

Answer:
yes