<https://data.muziekschatten.nl/som/224c815c1e9eaba5ba1092db3b8bff54> <http://schema.org/keywords> "J. Fred Helf" .
<https://data.muziekschatten.nl/som/224c815c1e9eaba5ba1092db3b8bff54> <http://schema.org/name> "J. Fred Helf" .
<https://data.muziekschatten.nl/som/224c815c1e9eaba5ba1092db3b8bff54> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://schema.org/Person> .