Table for the 3 triples for predicate foaf:mbox_sha1sum in graph https://cliopatria.swi-prolog.org/packs/cluster_search

SubjectObject
_:Chris Dijkshoon"cdd51ea624e0098345b94ebed9951cdc09fa6002"
_:Jacco van Ossenbruggen"8ecbc3d555ecbc8331719730f4cb446377ec712a"
_:Jan Wielemaker"978960dc2b55569afc442ae1a6f1a617e013d732"