SELECT DISTINCT ?uri WHERE {?uri <http://dbpedia.org/property/associatedActs> <http://dbpedia.org/resource/Johnny_Cash> . ?uri <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/Person>}
What people are known to work for Johnny Cash?
SELECT DISTINCT ?t WHERE { ?t rdf:type ontology:Person . ?t property:associated_acts resource:Johnny_Cash }
answer
The people who associated with Johnny Cash are [answer].
The people worked for Johnny Cash are [the answer].
The musical artists whose associated musician is him are [answer].
The musicians he is associated with [answer].