"ref"=>"1","design"=>"barrel","structure"=>"tubular","endpoint:overhead_line"=>"yes","endpoint:underground_cable"=>"yes"
"design"=>"delta_two-level","line_attachment"=>"anchor","ref"=>"10"
"frequency"=>"39.5Mhz","technology"=>"GSM 900","tower:type"=>"communication","technology_1"=>"LTE","tower:construction"=>"freestanding"
"ref"=>"19","design"=>"delta_two-level","tower:type"=>"crossing"
"ref"=>"20","design"=>"delta_two-level","tower:type"=>"anchor"
"ref"=>"21","design"=>"delta_two-level","tower:type"=>"anchor"