<http://webisa.webdatacommons.org/90883421>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/25311051>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/90883421> .
<http://webisa.webdatacommons.org/90883421>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<airliners.net> .
<http://webisa.webdatacommons.org/prov/227354301>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/90883421> .
<http://webisa.webdatacommons.org/90883421>	<http://www.w3.org/ns/prov#value>	"Health authorities worldwide are on alert, including in the U.S. U.S. doctors say they do not know what causes the illness - even whether it is a bacteria or virus - or how it spreads." .