About: http://webisa.webdatacommons.org/369899411

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	Alto uses what it calls "stacks" to separate emails that are important to the user compared to other emails that are not as important or flat-out spam or junk emails.
http://www.w3.org/ns/prov#wasQuotedFrom	neowin.net