<http://webisa.webdatacommons.org/prov/355601086>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/140620789> .
<http://webisa.webdatacommons.org/140620789>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .
<http://webisa.webdatacommons.org/140620789>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/143385165>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/140620789> .
<http://webisa.webdatacommons.org/140620789>	<http://www.w3.org/ns/prov#value>	"Accordingly, there is a need for a method and system to ensure that television program viewers will watch programs and corresponding advertisements." .