A heart may run empty.Logical formLearned from9 sentences. A (trash button) can be empty.Logical formLearned from9 sentences. A person may run empty.Logical formLearned from9 sentences. A dome can be empty.Logical formLearned from9 sentences. A (beer cup) can be empty.Logical formLearned from9 sentences. A French quarter can be empty.Logical formLearned from9 sentences. Insides can be empty.Logical formLearned from9 sentences. Storefronts can be empty.Logical formLearned from9 sentences. (Drug bottles) can be empty.Logical formLearned from9 sentences. A sphere can be empty.Logical formLearned from9 sentences. A word may return empty.Logical formLearned from9 sentences. A fling can be empty.Logical formLearned from9 sentences. An address can be empty.Logical formLearned from9 sentences. A salon can be empty.Logical formLearned from9 sentences. Areas can be empty.Logical formLearned from9 sentences.