About: http://webisa.webdatacommons.org/102291474

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	In models we need a function to check if user is a student or a teacher, so:
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com