Assertion: searchlight signal | /r/ObjectUse | used in the u.s.
Facets:
value: widely
type: DEGREE
value: onward
type: LOCATION
value: from world war ii
type: TEMPORAL
value: for new work
type: PURPOSE
Source sentences:
text: From World War II onward, they were widely used in the U.S. for new work until the last fifteen to twenty years when vandalism began to render them vulnerable to false indications.