About: http://webisa.webdatacommons.org/99438542

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	Design by Contract - enforced through assertions such as class invariants, preconditions and postconditions.
http://www.w3.org/ns/prov#wasQuotedFrom	umich.edu