About: http://webisa.webdatacommons.org/64197347

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	With reference to the drawings, especially to Figure 1, the numeral 1' designates an oil-bearing formation above which is a relatively non oil-bearing impervious shale stratum 2 and below which is another relatively impervious stratum 3.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk