Question: Give me a count on scientist who are known for garrison is Tennessee ?
SPARQL:
SELECT DISTINCT COUNT(?uri) WHERE { ?x <http://dbpedia.org/ontology/garrison> <http://dbpedia.org/resource/Tennessee> . ?uri <http://dbpedia.org/property/knownFor> ?x . ?uri <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/Scientist>}