Question: Did Annie Leibovitz do the cover of The Road Ahead?
SPARQL query: ASK WHERE { <http://dbpedia.org/resource/The_Road_Ahead_(Bill_Gates_book)> <http://dbpedia.org/ontology/coverArtist> <http://dbpedia.org/resource/Annie_Leibovitz> }
Answer: [Yes], Annie Leibovitz is the cover artist of The Road Ahead.