Question: Which battle of  Khalid bin Sultan was also the conflict of Steve Buyer ?
SPARQL query:
PREFIX res: <http://dbpedia.org/resource/>
PREFIX prop: <http://dbpedia.org/property/>
PREFIX onto: <http://dbpedia.org/ontology/>
 SELECT DISTINCT ?uri WHERE { res:Khalid_bin_Sultan prop:battles ?uri. res:Steve_Buyer onto:battle ?uri}