<http://webisa.webdatacommons.org/321638828>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<nist.gov> .
<http://webisa.webdatacommons.org/prov/304246415>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/321638828> .
<http://webisa.webdatacommons.org/321638828>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/54522269>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/321638828> .
<http://webisa.webdatacommons.org/321638828>	<http://www.w3.org/ns/prov#value>	"Here, M is a matrix, Y is a variable with the number of rows" .