Question: Count the total number of academic discipline of the journals whose one of the academic discipline is Neuroimaging ?
SPARQL:
 SELECT DISTINCT COUNT(?uri) WHERE { ?x <http://dbpedia.org/ontology/academicDiscipline> <http://dbpedia.org/resource/Neuroimaging> . ?x <http://dbpedia.org/ontology/academicDiscipline> ?uri }