Assertion: trampoline | /r/HasProperty | developed by artiste
Facets:
value: supposedly
type: OTHER
value: according to circus folklore
type: OTHER
Source sentences:
text: According to circus folklore, the trampoline was supposedly first developed by an artiste named du Trampolin, who saw the possibility of using the trapeze safety net as a form of propulsion and landing device and experimented with different systems of suspension, eventually reducing the net to a practical size for separate performance.