About: http://webisa.webdatacommons.org/113842934

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	For certain implementations, the depth DO of each opening 400 a or 400 b can be in the range of about 5 ??m to about 120 ??m, such as from about 10 ??m to about 100 ??m or from about 20 ??m to about 70 vtm.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com