<http://webisa.webdatacommons.org/290112580>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/54750735>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/290112580> .
<http://webisa.webdatacommons.org/prov/54569664>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/290112580> .
<http://webisa.webdatacommons.org/290112580>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<biomedcentral.com> .
<http://webisa.webdatacommons.org/290112580>	<http://www.w3.org/ns/prov#value>	"region, i.e. a, b or c." .