<http://webisa.webdatacommons.org/prov/398567006>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/455963769> .
<http://webisa.webdatacommons.org/455963769>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<sciencedaily.com> .
<http://webisa.webdatacommons.org/455963769>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/455963769>	<http://www.w3.org/ns/prov#value>	"However, factors such as stress can cause a higher level of insomnia that may last for several weeks." .
<http://webisa.webdatacommons.org/prov/442727463>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/455963769> .