Question: What is the field of the Jon Speelman and occupation of the Karen Grigorian?
SPARQL:
 SELECT DISTINCT ?uri WHERE { <http://dbpedia.org/resource/Jon_Speelman> <http://dbpedia.org/ontology/field> ?uri. <http://dbpedia.org/resource/Karen_Grigorian> <http://dbpedia.org/ontology/occupation> ?uri}