Assertion: depth charge | /r/HasProperty | developed by the british
Facets:
value: in world war
type: TEMPORAL
value: for use against german submarines
type: PURPOSE
Source sentences:
text: The first depth charges were developed by the British in World War I for use against German submarines.
text: The first depth charges were developed by the British in World War I for use against German submarines or U-boats, beginning in late 1915.