advice alert appropriate-behavior appropriate-behaviour authorisation authorised authorization avoid be-careful black care careful caution communicating communication concern danger dangerous flammable gas gaseous no-ignition outlet potential red risk risks risky safety sign signs stay-clear vapour vapours warned warning warning-sign white beach denied directions disapproval disapproved inform information informing not-allowed not-permitted penalties permission-denied prohibited prohibition prohibitions protect protection public-beach restricted restrictions rules appropriate behavior appropriate behaviour cutout emergencies emergency floor isolated pictogram slip slippery slippery floor slippery surface slipping warn warning sign water wet wet floor wet surface yellow camping fines no-camping public-areas beware conditions garden garden-beds keep-out lookout planter-beds watch-your-step animal-crossing animal-priority animals announcement cautious crossing distance mammal not=too-close observant observe otter otters restriction security watch watch-out wildlife bait baits destruction elimination foxes health poison poisonous toxic toxicity toxins unhealthy approval approved bush-reserve conservation conserve green natural nature observation park permitted public-park directive discrimination exception exceptional exceptions limited limited-parking no-parking parking road-sign roadside special-parking street-sign traffic traffic-flow access-denied eroded erosion hillside no-access Soil subsidence weathered banned cars listen Look looking rain rain-drops trams