(Residence papers) can be valid.Logical formLearned from5 sentences. A successor can be valid.Logical formLearned from5 sentences. A role can be valid.Logical formLearned from5 sentences. A (death sentence) may remain valid.Logical formLearned from5 sentences. Tickets may remain valid.Logical formLearned from4 sentences. Some votes can be valid.Logical formLearned from4 sentences. (Vote results) can be valid.Logical formLearned from4 sentences. A facility can be valid.Logical formLearned from4 sentences. (Travel vouchers) can be valid for (air trips).Logical formLearned from4 sentences. A referendum may result valid.Logical formLearned from4 sentences. Remarks may remain valid.Logical formLearned from4 sentences. Attacks can be valid.Logical formLearned from4 sentences. A (bidding volume) can be valid.Logical formLearned from4 sentences. Some ballots can be valid.Logical formLearned from4 sentences. A passport can be valid for some years.Logical formLearned from4 sentences.