"material"=>"stone;steel","artist_name"=>"Inge Claesen"
"material"=>"steel","material_1"=>"stone","start_date"=>"1992","artist_name"=>"Melanie de Vroom","artwork_type"=>"sculpture"
"material"=>"bronze","artist_name"=>"Jean Bremers","artwork_type"=>"statue"
"artist_name"=>"Hetty Heyster","artwork_type"=>"sculpture","material"=>"bronze"
"artist_name"=>"Oda Swagemakers","artwork_type"=>"statue"
"material"=>"bronze;concrete","artist_name"=>"Anet van de Elzen","artwork_type"=>"statue"
"artist_name"=>"Harm Jan Vrolijk","artwork_type"=>"statue"