About: http://webisa.webdatacommons.org/119730730

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 cutting underwater or where fumes, ventilation, exhaust or air quality are a concern, such as tunnels, trenches, sewers and underground building and construction.
http://www.w3.org/ns/prov#wasQuotedFrom	desertdiamondindustries.com