About: http://webisa.webdatacommons.org/383604334

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	This paper introduces new types of square-piece jigsaw puzzles: those for which the orientation of each jigsaw piece is unknown.
http://www.w3.org/ns/prov#wasQuotedFrom	phys.org