Assertion: mayfly's wing | /r/CapableOf | fill with fluid
Facets:
value: hydraulically
type: MANNER
value: to harden
type: PURPOSE
Source sentences:
text: They float on the water surface and wait for their wings to fill with fluid and their veins to harden (as opposed to common presumption that they are drying their wings).
text: The dun wriggles out onto the surface, where its wings fill with fluid hydraulically and allow it to take flight.