A facial expression can be blank.Logical formLearned from6 sentences. The world can be blank.Logical formLearned from6 sentences. A (cd-r disc) can be blank.Logical formLearned from6 sentences. A legal pad can be blank.Logical formLearned from6 sentences. A (bio space) can be blank.Logical formLearned from6 sentences. A (bulletin board) can be blank.Logical formLearned from6 sentences. Types can be blank.Logical formLearned from6 sentences. A (notebook page) can be blank.Logical formLearned from6 sentences. A life can be blank.Logical formLearned from6 sentences. A person may find a blank page.Logical formLearned from6 sentences. Keys can be blank.Logical formLearned from6 sentences. A fax can be blank.Logical formLearned from6 sentences. Expanses can be blank.Logical formLearned from6 sentences. Photos can be blank.Logical formLearned from6 sentences. A dvd-rw can be blank.Logical formLearned from6 sentences.