<http://webisa.webdatacommons.org/318825556>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/318825556>	<http://www.w3.org/ns/prov#value>	"But on my ubuntu 12.04 server unoconv is failing for some formats such as xls, ppt, ..." .
<http://webisa.webdatacommons.org/prov/108320091>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/318825556> .
<http://webisa.webdatacommons.org/318825556>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<stackoverflow.com> .