"colour"=>"grey","couplings"=>"1","fire_hydrant:type"=>"pillar","water_source"=>"main"
"colour"=>"red","couplings"=>"2","fire_hydrant:type"=>"pillar","survey:date"=>"2021-03-02","water_source"=>"main"
"fire_hydrant:type"=>"underground","water_source"=>"main"