About: http://webisa.webdatacommons.org/187114954

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	Some confined spaces, such as trenches, also pose the risk of collapse.
http://www.w3.org/ns/prov#wasQuotedFrom	ohsinsider.com