About: http://webisa.webdatacommons.org/315959506

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	Algebra.com is a site I have personal experience with as a volunteer, having helped many a student with their algebra homework there.
http://www.w3.org/ns/prov#wasQuotedFrom	wildaboutmath.com