About: http://webisa.webdatacommons.org/47459552

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	Re-reading the chmod man page shows that a+... (or its variants a- & a= ) sets the flags to the settings, whereas the shortcut '+' sets the flags except for bits set in the umask.
http://www.w3.org/ns/prov#wasQuotedFrom	catonmat.net