Tag 'ref = 21'

• 320: ref
• 159: highway
• 138: lamp_mount
• 133: lamp_type
• 123: light:lit
• 117: light:colour
• 116: light:shape
• 96: support
• 84: light:tilt
• 34: operator
• 33: allotments
• 32: leaf_type
• 32: natural
• 30: leaf_cycle
• 27: source
• 26: network
• 24: check_date
• 23: emergency
• 20: wikimedia_commons
• 20: power
• 20: pump
• 20: man_made
• 19: drinking_water:legal
• 19: wikipedia
• 19: pump:style
• 18: light:count
• 16: addr:full
• 16: colour
• 14: pump:status
• 14: official_ref
• 14: design
• 13: name
• 12: denotation
• 12: structure
• 12: material
• 11: railway
• 11: start_date
• 10: light:method
• 9: building
• 9: payment:coins
• 9: access
• 9: amenity
• 9: payment:app
• 9: vending
• 8: height
• 8: genus
• 8: genus:de
• 8: line_attachment
• 8: entrance
• 7: object:street
• 7: ownership
• 7: circumference
• 7: diameter_crown
• 6: operator:wikidata
• 6: level
• 6: owner
• 6: drinking_water
• 5: type
• 5: network:wikipedia
• 5: source:date
• 5: lamp_model:de
• 5: network:wikidata
• 5: railway:switch:electric
• 5: railway:turnout_side
• 5: operator:short
• 5: network:short
• 5: wikidata
• 4: route
• 4: interval
• 4: railway:local_operated
• 4: railway:switch
• 4: public_transport:version
• 4: to
• 4: barrier
• 4: from
• 4: wheelchair
• 4: mapillary
• 3: railway:switch:heated
• 3: indoor
• 3: roof:shape
• 3: building:levels
• 3: railway:switch:resetting
• 3: lamp_flames
• 3: railway:switch:movable_frog
• 3: species
• 3: obstacle:parking
• 3: door
• 3: fire_hydrant:position
• 3: lit
• 3: fire_hydrant:diameter
• 3: species:de
• 3: note
• 3: description
• 3: fire_hydrant:type
• 2: tourism
• 2: public_transport
• 2: light:direction
• 2: taxon
• 2: leisure
• 2: taxon:de
• 2: depth
• 2: check_date:ref
• 2: local_ref
• 2: roof:levels
• 1: source:ref
• 1: couplings
• 1: subject:wikidata
• 1: object:city
• 1: railway:signal:speed_limit_distant
• 1: railway:signal:speed_limit
• 1: surface
• 1: roof:material
• 1: pump:style:Lauchhammer
• 1: species:wikidata
• 1: isced:level
• 1: light_source
• 1: fire_hydrant:pressure
• 1: roof:colour
• 1: addr:postcode
• 1: object:housenumber
• 1: railway:signal:speed_limit:height
• 1: landuse
• 1: cemetery
• 1: railway:signal:traversable
• 1: building:material
• 1: railway:signal:combined:height
• 1: species:wikipedia
• 1: payment:debit_cards
• 1: bus
• 1: ref:IFOPT
• 1: pump:status:note
• 1: railway:signal:speed_limit_distant:form
• 1: step_count
• 1: water_source
• 1: subject:wikipedia
• 1: light_rail
• 1: survey:date
• 1: addr:suburb
• 1: contact:website
• 1: source:position
• 1: train
• 1: removed:emergency
• 1: railway:signal:traversable:type
• 1: object:postcode
• 1: light:mount
• 1: source_ref
• 1: removed:pump
• 1: route_master
• 1: railway:signal:combined:substitute_signal
• 1: old_ref
• 1: removed:amenity
• 1: opening_hours
• 1: building:colour
• 1: railway:signal:combined:function
• 1: railway:signal:position
• 1: destination
• 1: railway:signal:combined:states
• 1: railway:signal:direction
• 1: maxwidth:physical
• 1: removed:man_made
• 1: railway:signal:speed_limit:form
• 1: addr:country
• 1: alt_ref
• 1: railway:signal:combined:form
• 1: addr:city
• 1: addr:housenumber
• 1: railway:signal:speed_limit_distant:height
• 1: railway:signal:combined
• 1: roof:height
• 1: addr:street
• 1: sport
• 1: aeroway