Grots can be hollow.Logical formLearned from2 sentences. Life to a male can be hollow.Logical formLearned from2 sentences. A blast can be hollow.Logical formLearned from2 sentences. Accents can be hollow.Logical formLearned from2 sentences. A prison-house can be hollow.Logical formLearned from2 sentences. An (apple tree) can be hollow.Logical formLearned from2 sentences. A voice of a stream can be hollow.Logical formLearned from2 sentences. A male may make a way to a hollow tree.Logical formLearned from2 sentences. Courtyards can be hollow.Logical formLearned from2 sentences. A (steel drill pipe) can be hollow.Logical formLearned from2 sentences. (Bulldog bats) may roost in hollow trees.Logical formLearned from2 sentences. Roosts may be found in hollow trees.Logical formLearned from2 sentences. Freedom may remain hollow.Logical formLearned from2 sentences. An auger can be hollow.Logical formLearned from2 sentences. A (plastic pigment) can be hollow.Logical formLearned from2 sentences.