About: http://webisa.webdatacommons.org/140924752

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	FIG. 3A is a cross-sectional, side view of a reverse cementing float apparatus having back-flow and forward-flow flappers, and also having a float plug locked in a stinger sleeve.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es