"artist_name"=>"Lawrence Weiner","artwork_type"=>"sculpture"
"artist_name"=>"Harald Schone","artwork_type"=>"sculpture","material"=>"steel","start_date"=>"1987"
"material"=>"steel","start_date"=>"1967","artist_name"=>"Herman van der Heide","artwork_type"=>"sculpture"
"start_date"=>"1989","artist_name"=>"Harald Schone","artwork_type"=>"sculpture"
"artist_name"=>"Marjet Wessels Boer"
"artist_name"=>"Jan Wolkers","artwork_type"=>"sculpture"
"material"=>"steel","start_year"=>"1981","artist_name"=>"Berend Peter","artwork_type"=>"sculpture"
"artist_name"=>"Mark Manders","artwork_type"=>"sculpture"