What is the {human} for {architect} of {Flatiron Building}
Who is the planner for the Flatiron Building ?
Who is the architect for the Flatiron Building ?
SELECT DISTINCT ?m WHERE { ?m rdf:type ontology:human . resource:Flatiron_Building property:architect ?m }
select distinct ?obj where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q220728> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P84> . ?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/Q5> } 
 select distinct ?obj where { wd:Q220728 wdt:P84 ?obj . ?obj wdt:P31 wd:Q5 } 
Daniel Burnham