"start_date"=>"1963-11","artist_name"=>"Ian Jacob Pieters","artwork_type"=>"sculpture"
"material"=>"ceramic","start_date"=>"1960","artist_name"=>"Dick Elffers","artwork_type"=>"mural"
"artist_name"=>"Ian Jacob Pieters","artwork_type"=>"sculpture","material"=>"stainless_steel","start_date"=>"1970","url"=>"https://www.bkor.nl/beelden/de-eilanden/"
"artist_name"=>"Bert Kiewiet","artwork_type"=>"statue","material"=>"bronze","start_date"=>"1995"