Assertion: caldera | /r/HasProperty | filled by a crater lake
Facets:
value: with water
type: OTHER
value: in oregon
type: LOCATION
value: partly
type: DEGREE
Source sentences:
text: The caldera was once partly filled by a crater lake that covered about 50% of the crater.
text: Many calderas in the world are filled with water creating small to medium-sized lakes, like Crater Lake in Oregon, US.