(Champagne bottles) can be empty.Logical formLearned from61 sentences. A tummy can be empty.Logical formLearned from60 sentences. A (condom wrapper) can be empty.Logical formLearned from60 sentences. A vehicle can be empty.Logical formLearned from60 sentences. A bin can be empty.Logical formLearned from60 sentences. (Vodka bottles) can be empty.Logical formLearned from60 sentences. Barracks can be empty.Logical formLearned from60 sentences. A library can be empty.Logical formLearned from60 sentences. A (center fuel tank) can be empty.Logical formLearned from60 sentences. A factory can be empty.Logical formLearned from60 sentences. (Fuel tanks) can be empty.Logical formLearned from60 sentences. A flat can be empty.Logical formLearned from59 sentences. A world-city can be empty.Logical formLearned from59 sentences. Stretches can be empty.Logical formLearned from59 sentences. A (bank account) can be empty.Logical formLearned from59 sentences.