"material"=>"bronze","start_date"=>"2003","artist_name"=>"Gert Sennema","artwork_type"=>"sculpture"
"artist_name"=>"Robin de Krijger","artwork_type"=>"sculpture","material"=>"steel"
"material"=>"stone;iron","start_date"=>"1999","artist_name"=>"Gjalt Blaauw","artwork_type"=>"sculpture"
"material"=>"metal;glass","start_date"=>"1996","artist_name"=>"Gerlof Hamersma","artwork_type"=>"sculpture"
"material"=>"steel;wood;iron;polyester","start_date"=>"1984","artist_name"=>"Carolien Feldbrugge","artwork_type"=>"sculpture"
"material"=>"metal","start_date"=>"1987","artist_name"=>"Jan Tengbergen","artwork_type"=>"sculpture"
"artist_name"=>"Gosse Dam","artwork_type"=>"sculpture"