About: http://webisa.webdatacommons.org/95950293

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	Mastery is a word to show that you have grasped the whole concept or idea comprehensively, and is quite a professional and skilled person on the subject.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com