advice alert appropriate-behavior appropriate-behaviour be-careful beware black Cacti cactus cactus-garden care careful caution communicating communication concern conditions danger dangerous directions informing lookout not-allowed not-permitted prohibited prohibition red risk risks sign signs warning warning-sign white dangers deep deep-water denied depth direction don’t-alight flowers foliage permission-denied plants risky river riverside safety water wet church instruction lot no not park parking shalt thou traffic blue flower forget-me-not forgetmenot garden myosotis summer sun violett access-denied access-limited behave behavior behaviour cautious communicate keep-out keep-to-path no-access no-entry restricted restriction restrictions appropriate behavior appropriate behaviour avoid not allowed not permitted permission denied polluted pollution protect protection rules toxic toxicity warning sign water pollution water toxicity weathered worn access-limitations authorise authorised authority building electricity electricity-supply exceptions limitations limited limited-entry power power-supply regulations responsible balsam England Himalayan impatiens pink Sussex touch-me-not wild inform information message please polite prohibitions rectangle rectangular signage text words approval approved green permitted public-park vehicle angry answer emphatic exclamation mark nay negative stop word