Assertion: peak's summit | /r/HasProperty | covered by rock-hard snow
Facets:
Source sentences:
text: The summit of Everest itself is covered by rock-hard snow surmounted by a layer of softer snow that fluctuates annually by some 5–20 feet (1.5–6 metres); the snow level is highest in September, after the monsoon, and lowest in May after having been depleted by the strong northwesterly winter winds.