Assertion: central lake filled caldera | /r/HasProperty | about 4.5
Facets:
value: by 3 km
type: LOCATION
value: in area
type: LOCATION
Source sentences:
text: Mount Katmai, located within the Katmai National Park and Preserve on the Alaska Peninsula, in Alaska, USA, is a stratovolcano has a central lake-filled caldera which is about 4.5 by 3 km in area.