About: http://webisa.webdatacommons.org/146506752

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	Constraints have been used in many types of languages and systems, especially in user interface toolkits, planning and scheduling, and simulation.
http://www.w3.org/ns/prov#wasQuotedFrom	dmoz.org