Assertion: photocopier | /r/HasProperty | mainstay
Facets:
value: in most offices
type: LOCATION
value: since early 1980s
type: TEMPORAL
value: since the late 1970s
type: TEMPORAL
Source sentences:
text: Photocopiers are pretty standard pieces of office equipment, having been a mainstay in most offices since the late 1970s and early 1980s.