Bowls can be hollow.Logical formLearned from4 sentences. Reassurances can be hollow.Logical formLearned from4 sentences. A win can be hollow.Logical formLearned from4 sentences. A preview can be hollow.Logical formLearned from4 sentences. A braid can be hollow.Logical formLearned from4 sentences. A subdivision can be hollow.Logical formLearned from4 sentences. An extension can be hollow.Logical formLearned from4 sentences. An economy can be hollow.Logical formLearned from4 sentences. A pledge of a cease-fire may ring hollow.Logical formLearned from4 sentences. A politician can be hollow.Logical formLearned from4 sentences. Buildings can be hollow.Logical formLearned from4 sentences. An amusement can be hollow.Logical formLearned from4 sentences. A support can be hollow.Logical formLearned from4 sentences. A nonsense can be hollow.Logical formLearned from4 sentences. A dialogue can be hollow.Logical formLearned from4 sentences.