Ключевые слова: abstract, accuracy, accurate, agree, agreement, answer, approval, blackboard, box, business, chalkboard, change, check, choice, choose, correct, cross, decide, decision, determine, education, election, false, icon, judge, judgment, manager, no, ok, opinion, option, paper, positivity, question, reality, right, select, selection, sign, solution, success, survey, symbol, tick, true, truth, vote, word, wrong, yes,