An (expedition game) can be hollow.Logical formLearned from4 sentences. A (body electric) can be hollow.Logical formLearned from4 sentences. A bead can be hollow.Logical formLearned from4 sentences. A (metal rod) can be hollow.Logical formLearned from4 sentences. Compliments can be hollow.Logical formLearned from4 sentences. An (expedition scenario) can be hollow.Logical formLearned from4 sentences. A stand can be hollow.Logical formLearned from4 sentences. A dorsal (nerve cord) can be hollow.Logical formLearned from4 sentences. A fur can be hollow.Logical formLearned from4 sentences. A measure can be hollow.Logical formLearned from4 sentences. A call may sound hollow.Logical formLearned from4 sentences. A north can be hollow.Logical formLearned from4 sentences. A friendship can be hollow.Logical formLearned from4 sentences. A yard can be hollow.Logical formLearned from4 sentences. A semblance can be hollow.Logical formLearned from4 sentences.