About: http://webisa.webdatacommons.org/449169898

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	added a comment - 09/Jun/12 2:38 AM One solution we were thinking of was to add a new field to the message_read table to flag is a message was never delivered.
http://www.w3.org/ns/prov#wasQuotedFrom	moodle.org