Question: How many food items have an ingredient from the Sapindales family?
SPARQL:
SELECT DISTINCT COUNT(?uri) WHERE { ?x <http://dbpedia.org/ontology/order> <http://dbpedia.org/resource/Sapindales> . ?uri <http://dbpedia.org/ontology/ingredient> ?x  . ?uri <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/Food>}