<http://webisa.webdatacommons.org/prov/51686588>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/169338687> .
<http://webisa.webdatacommons.org/169338687>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/169338687>	<http://www.w3.org/ns/prov#value>	"countries, is a question that cannot be solved/' The authors are not acquainted" .
<http://webisa.webdatacommons.org/169338687>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<archive.org> .