What is the {horse} for {mount} of {Robert E. Lee}
Mention of the horse used during mounting by Robert E. Lee.
Mention the horse used by Robert E. Lee during mounting.
SELECT DISTINCT ?u WHERE { resource:Robert_E._Lee property:mount ?u . ?u rdf:type ontology:horse }
select distinct ?obj where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q165557> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P3091> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj . ?obj <http://www.wikidata.org/entity/P31> <http://wikidata.dbpedia.org/resource/Q726> } 
 select distinct ?obj where { wd:Q165557 wdt:P3091 ?obj . ?obj wdt:P31 wd:Q726 } 
Traveller