<http://webisa.webdatacommons.org/prov/435032828>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/5347939> .
<http://webisa.webdatacommons.org/5347939>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/5347939>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<ncatlab.org> .
<http://webisa.webdatacommons.org/5347939>	<http://www.w3.org/ns/prov#value>	"For example there is a variant for the stable (???,1)-category of spectra." .