Matter may undergo an exchange.Logical formLearned from31 sentences. Heat may undergo exchanges.Logical formLearned from31 sentences. An exchange can be controlled.Logical formLearned from31 sentences. Land may undergo exchanges.Logical formLearned from31 sentences. Exchange can be for donations.Logical formLearned from31 sentences. Services can be in exchange.Logical formLearned from31 sentences. Exchange can be for items.Logical formLearned from31 sentences. A result can be constituted-of-or-filled-with exchanges.Logical formLearned from31 sentences. Sides may pertain-to an exchange.Logical formLearned from31 sentences. A rise can be in an (exchange rate).Logical formLearned from31 sentences. Exchange can be for loans of securities.Logical formLearned from31 sentences. Volleys may undergo an exchange.Logical formLearned from31 sentences. A statement can be to an exchange.Logical formLearned from31 sentences. An exchange of gunfire may take place.Logical formLearned from31 sentences. Exchange can be for (security assurances).Logical formLearned from31 sentences.