Saddles can be hollow.Logical formLearned from6 sentences. Sclerites can be hollow.Logical formLearned from6 sentences. Heels can be hollow.Logical formLearned from6 sentences. Toad can be hollow.Logical formLearned from6 sentences. A masonry can be hollow.Logical formLearned from6 sentences. Fields can be hollow.Logical formLearned from6 sentences. Roots can be hollow.Logical formLearned from6 sentences. A left can be hollow.Logical formLearned from6 sentences. A soundbox can be hollow.Logical formLearned from6 sentences. Barrels can be hollow.Logical formLearned from6 sentences. A spike can be hollow.Logical formLearned from6 sentences. An enclosure can be hollow.Logical formLearned from6 sentences. Life can be hollow.Logical formLearned from6 sentences. Filaments can be hollow.Logical formLearned from6 sentences. A concrete can be hollow.Logical formLearned from6 sentences.