what is the {of} for {Charles A. Beard} has {position held} as {chairperson} ?
Which was the reason for Charles A Beard to be in the position of Chairperson?
What is the reason for Charles A Beard is in the position as Chairperson?
SELECT ?k WHERE { ?d property:of ?k . ?d property:position_held resource:chairperson . resource:Charles_A._Beard property:position_held ?d }
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q719860> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P39> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q140686> .
?statement <http://www.wikidata.org/entity/P642> ?value. 
} 

SELECT ?value WHERE { wd:Q719860 p:P39 ?s . ?s ps:P39 wd:Q140686 . ?s pq:P642 ?value}