About: http://webisa.webdatacommons.org/174908898

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	Bash: How to use sed to remove all characters except letters and numbers?
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com