About: http://webisa.webdatacommons.org/247447284

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	Furthermore, by using a cover 46 which may be made of a similar material, such as plastic, as shown in FIG .7, the test tubes are protected from contamination.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com