About: http://webisa.webdatacommons.org/335577302

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	Such workers typically also use safety helmets to protect their heads from falling rocks, timbers, tools, debris and other objects.
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com