What is the {nickname} for {military rank} of {Salman of Saudi Arabia}
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SELECT DISTINCT ?d WHERE { resource:Salman_of_Saudi_Arabia property:military_rank ?d . ?d rdf:type ontology:nickname }
select distinct ?obj where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q367825> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P410> . ?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/Q49614> } 
 select distinct ?obj where { wd:Q367825 wdt:P410 ?obj . ?obj wdt:P31 wd:Q49614 } 
Supreme Commander of all military forces