"artist_name"=>"Wijnand Schoemaker","start_date"=>"1997"
"artist_name"=>"Rob Langedoen","artwork_type"=>"sculpture","material"=>"steel","start_date"=>"1985"
"artist_name"=>"Jozef Kemperman","material"=>"hard stone","start_date"=>"2006"
"artist_name"=>"Jean Marianne Bremers","artwork_type"=>"statue","start_date"=>"1992"