<http://webisa.webdatacommons.org/273341448>	<http://www.w3.org/ns/prov#value>	"The present invention is in the field of interactive on-line communication and has particular application to methods including software for creating and conducting interactive lectures via the Internet or other wide-area network (WAN)." .
<http://webisa.webdatacommons.org/prov/479733728>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/273341448> .
<http://webisa.webdatacommons.org/273341448>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.es> .
<http://webisa.webdatacommons.org/273341448>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .