About: http://webisa.webdatacommons.org/52559591

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	Thus, we restrict ourselves to certain examples which on one hand show these difficulties and on the other hand represent the possible types of solutions.
http://www.w3.org/ns/prov#wasQuotedFrom	osapublishing.org