<http://webisa.webdatacommons.org/prov/516247094>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/273347331> .
<http://webisa.webdatacommons.org/273347331>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<nag.co.uk> .
<http://webisa.webdatacommons.org/273347331>	<http://www.w3.org/ns/prov#value>	"where P is a permutation matrix, U is upper triangular and L is lower triangular." .
<http://webisa.webdatacommons.org/273347331>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .