<http://webisa.webdatacommons.org/prov/298823630>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/261495258> .
<http://webisa.webdatacommons.org/261495258>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/261495258>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<mathoverflow.net> .
<http://webisa.webdatacommons.org/prov/292985193>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/261495258> .
<http://webisa.webdatacommons.org/261495258>	<http://www.w3.org/ns/prov#value>	"I can not stand anything other than chalk and board!" .