Ключевые слова: 911, abbreviation, accident, alarm, alert, assistance, background, block, call, caution, communication, danger, emergency, fire, health, healthcare, help, hope, hotline, important, international, issue, letter, life, lifesaver, location, mayday, medical, message, notice, notification, our, over, phone, protection, rescue, safe, safety, save, service, ship, shoulder, sibling, sos, soul, support, urgent, warning, wood, word,