what is the {object has role} for {BBC} has {manager/director} as {Tony Hall, Baron Hall of Birkenhead} ?
Give me the object has role for BBC has manager/director as Tony hall,baron hall of Birkenhead?
SELECT ?value WHERE { wd:Q9531 p:P1037 ?s . ?s ps:P1037 wd:Q80390 . ?s pq:P3831 ?value}
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q9531> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P1037> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q80390> .
?statement <http://www.wikidata.org/entity/P3831> ?value. 
} 

What role does manager/director Tony Hall, Baron of Birkenhead, play at BBC?