<http://webisa.webdatacommons.org/prov/173304541>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/200136239> .
<http://webisa.webdatacommons.org/200136239>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/200136239>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<stackexchange.com> .
<http://webisa.webdatacommons.org/200136239>	<http://www.w3.org/ns/prov#value>	"What file types and sizes are you trying to upload?" .