A world-city may replace leader.Logical formLearned from7 sentences. A person may replace a (defense team).Logical formLearned from7 sentences. A male may be replaced at some time.Logical formLearned from7 sentences. A male may replace in a slot.Logical formLearned from7 sentences. A male may be replaced by youngster.Logical formLearned from7 sentences. Currencies may be replaced by an euro.Logical formLearned from7 sentences. An agreement may replace some accord.Logical formLearned from7 sentences. A man may be replaced as president by a woman.Logical formLearned from7 sentences. A person may replace a mother.Logical formLearned from7 sentences. A male may be replaced as chief executive by a male.Logical formLearned from7 sentences. A male may be replaced by prime minister.Logical formLearned from7 sentences. A g20 may replace a g8.Logical formLearned from6 sentences. Fluids may be replaced.Logical formLearned from6 sentences. Boats may replace rickshaws.Logical formLearned from6 sentences. A mission may be replaced.Logical formLearned from6 sentences.