advice alert announcement appropriate-behavior appropriate-behaviour be-careful beware black care careful caution communicating communication concern danger dangerous directions informing Look looking lookout observant red risk risks safety sign signs slow slow-down traffic vehicles warning warning-sign watch watch-out white angles arm basket cherry-picker cleaning electricity elevated elevation equipment extension external Harness height heights high insulators machinery on-high perspectives power power-lines power-pole raised raised-platform risky safety-harness surface surfaces up-high washing work workman background brown green lion lioness nature Planckendael strength zoo 2014 artwork button design Ebola medical special stop vector arrow board canada colour conifer fire flammable forest indicator inflammable notice tree wood cliffs coastline natural Pembrokeshire rocks sea spring wales water welsh architecture blue downstairs elements sky stair stairs step upstairs appearance appetite blind-bugs bugs damage damaged destroying destruction destructive hungry insatiable insects riddled surfaced termites texture textured textures thick thin timber trails voracious wall white-anted white-anting white-ants wood-damage wood-eaters wood-wall woodwork cautious denied direction inform information message not-allowed not-permitted permission-denied please polite prohibited prohibition prohibitions protect protection rectangle rectangular rules signage text words consumption faucet health listen tap undrinkable unhealthy approval approved park permitted public-park vehicle