About: http://webisa.webdatacommons.org/93935874

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	In practice, we are much more interested in problems that are tractable, i.e. their complexity does not grow too fast on the cases that are met in practice.
http://www.w3.org/ns/prov#wasQuotedFrom	newscientist.com