Assertion: catapult | /r/HasProperty | trebuchet
Facets:
Source sentences:
text: The most sophisticated catapult is a trebuchet, which uses gravity rather than tension or torsion to propel the throwing arm.
text: The most accurate catapult is the trebuchet, which uses a wooden frame, a long beam that acts as a throwing arm, and a counterweight that outweighs the payload.
text: Traditionally, there are two mechanical devices that work on the same platform as catapults, which are ballistas and trebuchets.