Ключевые слова: achievement, approach, attitude, award, backdrop, background, business, bussiness, challenge, chance, change, choice, communication, company, competition, competitor, concept, connection, cooperation, deal, decision, fail, failure, game, lose, loser, loss, motivation, negotiation, opportunity, outcome, partnership, plan, problem, result, situation, solution, strategy, success, sum, teamwork, theory, victory, war, win, word, zero, zero sum, zero sum situation,