About: http://webisa.webdatacommons.org/197185803

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	Lev Vygotsky is a famous psychologist from former Soviet Union, whose theory made great contribution to defectology.
http://www.w3.org/ns/prov#wasQuotedFrom	cscanada.net