About: http://webisa.webdatacommons.org/24909678

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	Confined Space is a space that meets all three criteria:A permit required confined space is one that contains or has the potential to contain serious Free Space Optics Author:
http://www.w3.org/ns/prov#wasQuotedFrom	slideworld.org