Ключевые слова: 2019ncov, avoid, cannot sit, covid 19, covid19, disease prevention, distance, distancing, do not sit here, do not sit here images, do not sit here sign, do not sit here signage, dont sit here, epidemic, forbid, forbidden, label, not allowed, outbreak, physical distancing, prevention, preventive, prohibition, prohibition sign, protection, protective, public transport, safety, sign, sit sign, sitting sign, social distancing, symbol, warning,