advice aid alert availability boost booster communicating communication distinctive emergencies emergency fire-brigade fire-control fire-hydrant firemen fires help hope hydrant identification indentifying indication indicator information informative informing lettering maintain maintenance nearby notification notifying prepared pressure red red-and-white safety sign surface water water-pressure white appropriate-behavior appropriate-behaviour behave behavior behaviour birds black care careful caution communicate directions ducks fatal feed feeding food inform message no-bread not-allowed not-permitted permission-denied prohibited prohibition restricted restriction restrictions signage warning water-birds watrer-fowl access airport airport-terminal blue directional-signs doors exit inside interior open open-doors passengers pedestrians signs travel travellers travelling way-out advising business closed commerce expression letters no-entry not-open shop shop-sign silver wording words circles concern danger dangerous denied disapproval disapproved messages pictograms prohibitions protect protection public rules symbols warning-sign access-denied boating boats directing direction helpful risk risks risky rocks rocky shallow symbol waterside yellow background bright colored colorful coloring colors coloured colourful colouring colours contrast contrasting contrasts decoration facetious fading flippant fuzzy paint painted pink pink-painted-wall sarcasm symbolic vehicles wall wallpaper 3-D color coloration colour convenience embossed embossing ladies-and-gents loo personal public-convenience public-toilet raised rest-rooms sanitation script tactile texture textured textures thick thin toilet toilets wc word aging angles appearance architectural architecture Australia brown corrosion dark darwin decay deterioration elements historic metal old perspectives rough rust rusty seepage storage surfaces tunnel tunnels Underground uneven variations war wearing weathering World-War-2 wwii
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