A digestive tract can be immature.Logical formLearned from4 sentences. A virus may grow in an intestinal tract.Logical formLearned from4 sentences. Claims can be to tracts of land.Logical formLearned from4 sentences. Tracts can be constituted-of-or-filled-with (storage space).Logical formLearned from4 sentences. An intestinal tract may play host to a multitude of guests.Logical formLearned from4 sentences. Tracts may be examined in an area.Logical formLearned from4 sentences. Tracts may pertain-to a desert.Logical formLearned from4 sentences. (Land tracts) can be undeveloped.Logical formLearned from4 sentences. (Census tracts) can be populated.Logical formLearned from4 sentences. An abnormality can be in an urinary tract.Logical formLearned from4 sentences. Tracts can be constituted-of-or-filled-with pastureland.Logical formLearned from4 sentences. The climate may pertain-to a tract.Logical formLearned from4 sentences. A majority may pertain-to a tract.Logical formLearned from4 sentences. A tract may be bounded by avenues.Logical formLearned from4 sentences. A person may purchase a tract.Logical formLearned from4 sentences.