What is the {royal or noble rank} for {office held by head of state} of {Kingdom of Mercia}
What illustrious or respectable rank does the head of state of the Kingdom of Mercia hold?
What royal or noble rank does the head of state of the Kingdom of Mercia hold?
SELECT DISTINCT ?a WHERE { resource:Kingdom_of_Mercia property:office_held_by_head_of_state ?a . ?a rdf:type ontology:noble_title }
select distinct ?obj where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q105092> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P1906> . ?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/Q355567> } 
 select distinct ?obj where { wd:Q105092 wdt:P1906 ?obj . ?obj wdt:P31 wd:Q355567 } 
King of Mercia