<http://webisa.webdatacommons.org/260951238>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/260951238>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<mayoclinic.org> .
<http://webisa.webdatacommons.org/260951238>	<http://www.w3.org/ns/prov#value>	"Polysomnography, also called a sleep study, is a test used to diagnose sleep disorders." .
<http://webisa.webdatacommons.org/prov/196461372>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/260951238> .