About: http://webisa.webdatacommons.org/133652791

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	However if the area is not rectangular you may need to break the area down into different shapes, such as triangles and semi- circles to calculate as accurate a volume as possible.
http://www.w3.org/ns/prov#wasQuotedFrom	lets-do-diy.com