Cancer may pertain-to a respiratory tract.Logical formLearned from13 sentences. Areas may pertain-to a tract.Logical formLearned from13 sentences. Symptoms can be constituted-of-or-filled-with (tract infection).Logical formLearned from13 sentences. A tract can be influential.Logical formLearned from13 sentences. Militants may gain control of tracts of a northwest.Logical formLearned from13 sentences. Tracts can be unspoiled.Logical formLearned from13 sentences. A male may purchase a tract.Logical formLearned from12 sentences. A tract can be constituted-of-or-filled-with (forest land).Logical formLearned from12 sentences. A male may publish some tracts.Logical formLearned from12 sentences. A male may own a tract of land.Logical formLearned from12 sentences. Tracts can be written.Logical formLearned from12 sentences. Parts may pertain-to a tract.Logical formLearned from12 sentences. A portion may pertain-to a gastrointestinal tract.Logical formLearned from12 sentences. Some (census tracts) can be in an area.Logical formLearned from12 sentences. Tracts can be ideological.Logical formLearned from12 sentences.