Sales can be constituted-of-or-filled-with frigates.Logical formLearned from2 sentences. A frigate may return.Logical formLearned from2 sentences. Some frigates may carry missiles.Logical formLearned from2 sentences. A navy may display operations of a new generation of frigates.Logical formLearned from2 sentences. Frigates may have capabilities.Logical formLearned from2 sentences. Frigates can be acquired.Logical formLearned from2 sentences. A (missile frigate) can be high-speed.Logical formLearned from2 sentences. Frigates may have a speed of some knots.Logical formLearned from2 sentences. A (missile frigate) can be advanced.Logical formLearned from2 sentences. Some frigates may be purchased from a country.Logical formLearned from2 sentences. Work can be on frigates.Logical formLearned from2 sentences. An encounter can be with a frigate.Logical formLearned from2 sentences. A frigate may be involved in fring a (cargo ship).Logical formLearned from2 sentences. A side may pertain-to a frigate.Logical formLearned from2 sentences. A helicopter may ferry doctors to a frigate.Logical formLearned from2 sentences.