Assertion: early skyscraper | /r/HasProperty | only 12 feet
Facets:
value: commonly
type: DEGREE
Source sentences:
text: Early skyscrapers were mainly made up of small office cubicles, commonly only 12 feet (3.7 m) across, which were placed adjacent to one another along long corridors, following a pattern first invented in the Oriel Chambers building in England in 1864.