"technology"=>"GSM 1800","tower:type"=>"communication"
"technology"=>"GSM 1800","tower:type"=>"communication"
"technology"=>"GSM 1800","tower:type"=>"communication"
"technology"=>"GSM 900","tower:type"=>"communication"
"technology"=>"GSM 1800","tower:type"=>"communication","technology_1"=>"UMTS","technology_2"=>"GSM 900","technology_3"=>"LTE"
"technology"=>"GSM 1800","tower:type"=>"communication"
"technology"=>"GSM 900","tower:type"=>"communication"
"technology"=>"UMTS","tower:type"=>"communication"
"technology"=>"GSM 900","tower:type"=>"communication"
"technology"=>"GSM 1800","tower:type"=>"communication"