About: http://webisa.webdatacommons.org/122319621

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	Naturally, there is an exception to the above rule: the parent can ignore the SIGCHLD signal(SIGCLD on some older systems) and then it wont have to wait().
http://www.w3.org/ns/prov#wasQuotedFrom	slideshare.net