Assertion: lake | /r/HasProperty | covered by ice
Facets:
value: from mid-december
type: TEMPORAL
Source sentences:
text: The average surface temperature has risen by almost 1.5 °C (2.7 °F) in the last 50 years, resulting in a shorter period where the lake is covered by ice.
text: The lake is covered by ice from mid-December to May or June.