A person may have a blank slate.Logical formLearned from19 sentences. A US-president can be a blank slate.Logical formLearned from19 sentences. A feeling can be blank.Logical formLearned from19 sentences. A look can be blank.Logical formLearned from19 sentences. A check can be blank.Logical formLearned from19 sentences. A board can be blank.Logical formLearned from19 sentences. A male may cast a blank ballot.Logical formLearned from18 sentences. Years can be blank.Logical formLearned from18 sentences. (Label comics) can be blank.Logical formLearned from18 sentences. Contracts can be blank.Logical formLearned from18 sentences. A common can be blank.Logical formLearned from18 sentences. A page may be left blank.Logical formLearned from18 sentences. Data can be blank.Logical formLearned from18 sentences. A checkbook can be blank.Logical formLearned from18 sentences. A surprise can be blank.Logical formLearned from18 sentences.