"start_date"=>"1938","artwork_type"=>"sculpture","artwork_subject"=>"Jan Buiskool"
"artist_name"=>"Coop Himmelblau","artwork_type"=>"sculpture","material"=>"steel","start_date"=>"1990"
"artist_name"=>"Dina Belga;Marte Röling;Carla de Winter","description"=>"seven flagpoles","start_date"=>"1997"