About: http://webisa.webdatacommons.org/418794966

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	FIG. 13A is a timing chart illustrating a normal case, and FIG. 13B is a timing chart illustrating the problem.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com