About: http://webisa.webdatacommons.org/188093323

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	PostGIS is an extension to the PostgreSQL database that many developers use on Heroku???s platform as a service.
http://www.w3.org/ns/prov#wasQuotedFrom	gigaom.com