"artist_name"=>"Henk Belkega","artwork_type"=>"statue","start_date"=>"1971"
"artwork_type"=>"sculpture","start_date"=>"2001"
"artist_name"=>"Gerard van Hulzen","artwork_type"=>"sculpture","start_date"=>"2001"
"artist_name"=>"Klaus Grosskopf","artwork_type"=>"sculpture"