"material"=>"bronze","start_date"=>"1970","artist_name"=>"José Pirkner","artwork_type"=>"statue"
"material"=>"bronze","start_date"=>"1982","artist_name"=>"Jan Vermaat","artwork_type"=>"statue"
"material"=>"bronze","start_date"=>"1978","artist_name"=>"Ineke van Dijk","artwork_type"=>"statue"