About: http://webisa.webdatacommons.org/190996457

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	Trenches must be excavated in such a manner as to insure that the sides will be stable under all working conditions.
http://www.w3.org/ns/prov#wasQuotedFrom	slideshare.net