Q: Does "They are less energy efficient as the pump works against gravity to push the car and its passengers upwards; this energy is lost when the car descends on its own weight." provide a valid answer to "What concerns arise when the lifting cylinder leaks fluid into the ground?"?
A: no

Q: Does "Oleg has the horse sequestered, and it later dies." provide a valid answer to "What does Oleg do to his horse?"?
A: yes

Q: Does "Originally planned for release on the GameCube in November 2005, Twilight Princess was delayed by Nintendo to allow its developers to refine the game, add more content, and port it to the Wii." provide a valid answer to "When could GameCube owners purchase Twilight Princess?"?
A: no

Q: Does "The club began to make plans for a new stadium." provide a valid answer to "In what year did Barcelona begin the construction of a new stadium?"?
A:
no