Ключевые слова: a, abc, alphabet, alphabetical, american, asl, background, bright, communicate, communication, concept, conceptual, deaf, education, finger, gesture, gesturing, guide, hand, handicap, hearing, help, human, international, isolated, isolation, language, learn, letter, message, nonverbal, order, part, person, school, sign, signal, spell, style, symbol, talk, text, thumb, white, woman,