alert appropriate-behavior appropriate-behaviour care caution cautious communication concern danger dangerous denied directions green inform information informing machinery machines not-allowed not-permitted permission-denied prohibited prohibition prohibitions protect protection rules safety sign signs warning warning-sign white animals prohibited appropriate behavior appropriate behaviour bicycles prohibited black black and white communicating denial dog littering prohibited no animals no bicycles no littering not allowed not permitted permission denied access-denied advice behave behavior behaviour communicate direction entry-denied entry-prohibited keep-out no-access no-entry restricted restriction restrictions unauthorised unauthorized advising avoid ban banned directive no-golf red risk risks risky signage access denied closed denying access denying entry entrance barred forbidden gates protected restricted area secure security security check-point serious stop allowed board close close-up closeup dogs forbid foul fouling free funny graphic gray grey humor humorous humour humourous icon image message no not object odor odour photo photograph pictogram pictograph picture poo poop resource signboard smell somadjinn stink stinking stock symbol texture UP be-careful beware Cacti cactus cactus-garden careful conditions lookout alcohol announcement consumption listen Look looking no-alcohol observant dangers deep deep-water depth don’t-alight flowers foliage plants river riverside water wet access-limited keep-to-path polluted pollution toxic toxicity warning sign water pollution water toxicity weathered worn