Presidential elections can be valid.Logical formLearned from5 sentences. Some tickets may remain valid.Logical formLearned from5 sentences. (Trade secrets) can be valid.Logical formLearned from5 sentences. An union can be valid.Logical formLearned from5 sentences. Deals can be valid.Logical formLearned from5 sentences. A memorandum of understanding can be valid.Logical formLearned from5 sentences. Ticket-holders can be valid.Logical formLearned from5 sentences. Provisions may remain valid.Logical formLearned from5 sentences. Election can be valid.Logical formLearned from5 sentences. A lot of criticisms can be valid.Logical formLearned from5 sentences. A (planning permission) can be valid.Logical formLearned from5 sentences. Licenses may remain valid.Logical formLearned from5 sentences. A referendum may be declared valid.Logical formLearned from5 sentences. Some cease-fire can be valid.Logical formLearned from5 sentences. (Expulsion orders) can be valid.Logical formLearned from5 sentences.