"material"=>"stone","start_date"=>"2012","artist_name"=>"Caroline Ruizeveld","artwork_type"=>"installation"
"material"=>"steel","artist_name"=>"Valentijn van der Heide","artwork_type"=>"installation"
"material"=>"concrete","artist_name"=>"Marina van der Kooi","artwork_type"=>"sculpture"
"material"=>"concrete","start_date"=>"2007","artist_name"=>"Frans Hage","artwork_type"=>"architecture"
"material"=>"steel","artist_name"=>"Jan van der Woud","artwork_type"=>"sculpture"