Assertion: bark spider | /r/CapableOf | stretch its dragline silk
Facets:
value: across large rivers
type: LOCATION
value: in a more natural flex
type: MANNER
Source sentences:
text: In a more natural flex, however, the Darwin's bark spider of Madagascar can stretch its dragline silk up to 25 meters (82 feet) across large rivers, forming the world's largest-known spiderwebs.