Assertion: glider | /r/HasProperty | vulnerable
Facets:
value: to flak
type: TRANSITIVE-OBJECT
Source sentences:
text: The casualty rates were worsened by the slow rates of release and descent of the gliders themselves, and the fact that each aircraft towed two gliders, slowing them even further; as the time to release a glider unit was 3–4 times longer than a parachute unit, the gliders were vulnerable to flak.