About: http://webisa.webdatacommons.org/258256417

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	Limiting the counter to e.g. 20 or 99 it is going to be useful in case your performances decrease if the unread messages are high.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com