About: http://webisa.webdatacommons.org/204601172

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	There are many data structures you can use which can be implemented in any language, including Java: skip lists, tries, b-trees, hashMap, so many others.
http://www.w3.org/ns/prov#wasQuotedFrom	devx.com