"technology"=>"GSM 900;UMTS","tower:construction"=>"lattice","tower:type"=>"communication"
"technology"=>"GSM 1800;GSM 900;UMTS","tower:type"=>"communication"
"tower:type"=>"communication","tower:construction"=>"lattice_steel"
"mast:type"=>"communication","communication:mobile_phone"=>"GSM 1800;GSM 900;UMTS"