Ключевые слова: background, beach, blue, caution, closed, corona, coronavirus, cov, covid19, danger, diseases, epidemic, hazard, holidays, line, lockdown, nature, ncov2019, ocean, outbreak, outdoor, pandemic, prohibited, protection, quarantine, red, restrictions, risk, rules, safety, sea, season, security, sign, sky, stop, summer, surgical, symbol, test, tourism, travel, travelling, trip, vacation, virus, warning, water, wellbeing,