An (e-mail exchange) may pertain-to persons.Logical formLearned from16 sentences. Exchange can be for items.Logical formLearned from16 sentences. Exchange can be for political contributions.Logical formLearned from16 sentences. Cooperation can be in exchange.Logical formLearned from16 sentences. Exchange can be for a hard work.Logical formLearned from16 sentences. Rights may undergo an exchange.Logical formLearned from16 sentences. An (exchange rate) may pertain-to a renminbi.Logical formLearned from16 sentences. An evening may undergo an exchange.Logical formLearned from16 sentences. A (lens exchange) can be refractive.Logical formLearned from16 sentences. Banks can be in exchange.Logical formLearned from16 sentences. Exchange can be for (prison terms).Logical formLearned from16 sentences. Exchange can be for wage.Logical formLearned from16 sentences. A success may pertain-to an exchange.Logical formLearned from16 sentences. An exchange can be between an elected-representative.Logical formLearned from16 sentences. Revenue can be in exchange.Logical formLearned from16 sentences.