First lieutenant may pertain-to a frigate.Logical formLearned from11 sentences. A frigate may surrender.Logical formLearned from11 sentences. A frigate may undergo a delivery.Logical formLearned from11 sentences. A (class frigate) may pertain-to a river.Logical formLearned from11 sentences. A group can be constituted-of-or-filled-with frigates.Logical formLearned from11 sentences. A frigate may have a displacement.Logical formLearned from11 sentences. A frigate may take part.Logical formLearned from11 sentences. A fleet can be constituted-of-or-filled-with frigates.Logical formLearned from11 sentences. Frigates may undergo construction.Logical formLearned from11 sentences. (Navy frigates) may pertain-to a country.Logical formLearned from11 sentences. A frigate may lose communication.Logical formLearned from11 sentences. A country may buy some frigates from a country.Logical formLearned from11 sentences. A target can be a frigate.Logical formLearned from11 sentences. A frigate may undergo a sinking.Logical formLearned from10 sentences. A frigate may pertain-to a French navy.Logical formLearned from10 sentences.