(Blood donors) can be unpaid.Logical formLearned from5 sentences. Accounts may remain unpaid.Logical formLearned from5 sentences. A life can be unpaid.Logical formLearned from5 sentences. A trustee can be unpaid.Logical formLearned from5 sentences. A salesman can be unpaid.Logical formLearned from5 sentences. (Tax obligations) can be unpaid.Logical formLearned from5 sentences. A staff can be unpaid.Logical formLearned from5 sentences. Cooperation can be unpaid.Logical formLearned from5 sentences. An award can be unpaid.Logical formLearned from5 sentences. A minister can be unpaid.Logical formLearned from5 sentences. Loans may remain unpaid.Logical formLearned from5 sentences. Players may go unpaid.Logical formLearned from5 sentences. An official can be unpaid.Logical formLearned from5 sentences. A certificate can be constituted-of-or-filled-with unpaid debts.Logical formLearned from5 sentences. Rent may remain unpaid.Logical formLearned from5 sentences.