alert appropriate behavior appropriate behaviour assistance black care concern danger dangerous directions emergencies emergency emergency action first aid help jellyfish jellyfish stings protect protection safety sign signs stingers stings warning warning sign yellow countryside death electricity electrocute electrocution pole power rural triangle wooden communication dangers deep deep water depth risk risks submerged objects swimmers swimming water white beware caution flake lubricity red road security snow winter agatka boy bring building crossing cutout flower flowers gentleman gift human isolated love male path post roadsign roadsigns square street tulip woman zebra advice avoid bright denied not allowed not permitted permission denied prohibited prohibition rules digger drive excavator traffic travel vehicle animal sheep banned broken car cars lot machine mechanic no no parking park parking parking lot tow towed brown Envelope hand-made letter long mail old paper shape