About: http://webisa.webdatacommons.org/133507208

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	- CSS lesson, Pseudo-Classes added in CSS3: nth-child(N), nth-of-type(N), last-child, root, empty, target, enabled, checked, and other pseudo-classes.
http://www.w3.org/ns/prov#wasQuotedFrom	coursesweb.net