Contacts may undergo an expansion.Logical formLearned from56 sentences. Industries may undergo an expansion.Logical formLearned from56 sentences. An (eastward expansion) may pertain-to an international-political-entity.Logical formLearned from55 sentences. A chain may undergo an expansion.Logical formLearned from55 sentences. A factory may undergo an expansion.Logical formLearned from55 sentences. Area may undergo an expansion.Logical formLearned from55 sentences. An effort may undergo an expansion.Logical formLearned from55 sentences. A strategy can be constituted-of-or-filled-with expansion.Logical formLearned from55 sentences. A pick can be in an (expansion draft).Logical formLearned from55 sentences. Support can be for expansion.Logical formLearned from55 sentences. Gases may undergo an expansion.Logical formLearned from54 sentences. An expansion can be logical.Logical formLearned from54 sentences. An expansion may pertain-to an airport.Logical formLearned from54 sentences. A range may undergo an expansion.Logical formLearned from54 sentences. A (military alliance) may undergo an expansion.Logical formLearned from54 sentences.