Ключевые слова: ab, african, angolan, caucasian, cellphone, chief, communication, connection, coverall, crew, deck, home, industrial, industry, job, jobsafety, man, marine, maritime, mate, mobile, mobilephone, navigational officer, nigerian, officer, offshore, overall, professional, protective, routine, safety, sea, sealife, seaman, seawork, security, ship, smartphone, speach, talk, talking, vessel, work,