"guest_house"=>"group_accomodation","source:date"=>"2017-01-26"
"guest_house"=>"bed_and_breakfast","internet_access"=>"wlan","source:date"=>"2014-05-07"
"guest_house"=>"group_accomodation","source:date"=>"2014-05-07"
"guest_house"=>"bed_and_breakfast","source:date"=>"2014-05-30"