Persons may have a frigate.Logical formLearned from5 sentences. A frigate can be state-of-the-art.Logical formLearned from5 sentences. A frigate can be unnamed.Logical formLearned from5 sentences. Some frigates may arrive.Logical formLearned from5 sentences. Frigates may be spotcheck.Logical formLearned from5 sentences. Sales can be constituted-of-or-filled-with some frigates.Logical formLearned from5 sentences. A (combat effectiveness) may pertain-to a frigate.Logical formLearned from5 sentences. A frigate may undergo a use.Logical formLearned from5 sentences. A frigate may sink.Logical formLearned from4 sentences. An escort may pertain-to a frigate.Logical formLearned from4 sentences. A country may dispatch a frigate to a country.Logical formLearned from4 sentences. A frigate may be equipped with missiles.Logical formLearned from4 sentences. A frigate may undergo a development.Logical formLearned from4 sentences. A frigate can be in a squadron.Logical formLearned from4 sentences. Frigates may be built.Logical formLearned from4 sentences.