Cages can be empty.Logical formLearned from15 sentences. A (glass cage) may pertain-to a male.Logical formLearned from15 sentences. Bird can be in a cage.Logical formLearned from14 sentences. A male may return to a cage.Logical formLearned from14 sentences. A female may be kept in a cage.Logical formLearned from14 sentences. Cages may be used.Logical formLearned from14 sentences. Cages can be expandable.Logical formLearned from14 sentences. Cages can be clean.Logical formLearned from14 sentences. Hundreds can be constituted-of-or-filled-with cages.Logical formLearned from14 sentences. A door to a cage can be open.Logical formLearned from14 sentences. A person may go into a cage.Logical formLearned from14 sentences. A female may be confined to a cage.Logical formLearned from14 sentences. Persons can be in a cage.Logical formLearned from14 sentences. A couple of cages may empty.Logical formLearned from14 sentences. Swings can be in a (batting cage).Logical formLearned from14 sentences.