"operator"=>"IJsvereniging Graaf Adolf Heiligerlee","seasonal"=>"yes"
"email"=>"info@klokkengieterijmuseum.nl","source:date"=>"2014-06-10"
"email"=>"info@slagbijheiligerlee.nl","source:date"=>"2014-06-10"
"population"=>"1435","population:date"=>"2017-01-01","postal_code"=>"9677","source:population"=>"CBS Buurt 2017","wikidata"=>"Q990966"
"name:pl"=>"Bitwa pod Heiligerlee","wikidata"=>"Q505699"
"operator"=>"IJsvereniging 'Oldambt'","seasonal"=>"yes"
"seasonal"=>"yes","source:date"=>"2018-05-08"