About: http://webisa.webdatacommons.org/377684845

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	For enclosures made in reducing the invention to practice, those having a maximum room span of 4.8 meters or less do not require support structure such as I-beams or columns.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com