"design"=>"delta_two-level","line_attachment"=>"anchor","ref"=>"10"
"technology"=>"GSM 1800","tower:type"=>"communication"
"technology"=>"GSM 900","tower:type"=>"communication"
"ref"=>"1","design"=>"barrel","structure"=>"tubular","endpoint:overhead_line"=>"yes","endpoint:underground_cable"=>"yes"
"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"