Question: List the destinations of the airlines which also serves Mediterranean  Sea ?
SPARQL query:
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX prop: <http://dbpedia.org/property/>
PREFIX onto: <http://dbpedia.org/ontology/>
SELECT DISTINCT ?uri WHERE { ?x prop:destinations <http://dbpedia.org/resource/Mediterranean_Sea> . ?x prop:destinations ?uri . ?x rdf:type onto:Airline}