About: http://webisa.webdatacommons.org/89378647

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	A problem is an event that requires handling, while a symptom is an event that may be observed.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com