About: http://webisa.webdatacommons.org/126598879

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	John Eck and William Spelman have proposed classifying such problems as wolf, duck and den problems:
http://www.w3.org/ns/prov#wasQuotedFrom	popcenter.org