A contractor can be in exchange.Logical formLearned from21 sentences. B-shares may be listed on a (stock exchange).Logical formLearned from21 sentences. Persons may have an (exchange student).Logical formLearned from21 sentences. (Stock exchanges) may have fortunes.Logical formLearned from21 sentences. (Military exchanges) may pertain-to a country.Logical formLearned from21 sentences. (Stock exchanges) may turn_in a performance.Logical formLearned from21 sentences. An exchange can be exclusive.Logical formLearned from21 sentences. Reports may undergo an exchange.Logical formLearned from21 sentences. Exchange can be for data.Logical formLearned from21 sentences. A dollars may undergo an exchange.Logical formLearned from21 sentences. Militants can be in exchange.Logical formLearned from21 sentences. (Exchange rates) can be volatile.Logical formLearned from21 sentences. An (exchange rate) can be artificial.Logical formLearned from21 sentences. A string can be constituted-of-or-filled-with exchanges.Logical formLearned from21 sentences. Exchanges can be between legislatures of some countries.Logical formLearned from20 sentences.