"board_type"=>"history","information"=>"board","source:board_type"=>"survey","source:board_type:date"=>"16-10-2018","source:date"=>"16-10-2018","source:name"=>"survey","source:name:date"=>"16-10-2018"
"board_type"=>"history","check_date"=>"2021-08-07","information"=>"board"