<http://webisa.webdatacommons.org/90270458> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/prov#Entity> . <http://webisa.webdatacommons.org/prov/376141750> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/90270458> . <http://webisa.webdatacommons.org/90270458> <http://www.w3.org/ns/prov#value> "And those seeking OAV's services love using the virtual option as a cost-effective and easy-to-schedule method of hosting an author guest for their meetings, classes, and other special events." . <http://webisa.webdatacommons.org/90270458> <http://www.w3.org/ns/prov#wasQuotedFrom> <blogspot.com> .