advice alert appropriate-behavior appropriate-behaviour behave behavior behaviour black communicate communication directions inform information informing message not-allowed not-permitted permission-denied prohibited prohibition red restricted restriction restrictions sign signage warning balls denied golf golf-balls golf-club golf-course golfers golfing removal removal-prohibited direction environment expectorate expectorating health health-risk historic-sign no-spitting old pollution railway-platform spit spitting unhealthy appropriate behavior appropriate behaviour care concern danger dangerous law legalities not allowed not permitted permission denied protect protection rules safety signs warning sign white black and white children communicating denial dog dogs-prohibited kids pets playground beach black-and-white canine fine no-dogs penalty seashore unwelcome blue dangers no-diving risk risks risky shallow swimmers swimming water wet vehicle circle directing directional directive no parking parking reflective road sign street sign traffic traffic flow verge