A frigate can be dark.Logical formLearned from2 sentences. A month may report a frigate.Logical formLearned from2 sentences. Frigates may lose sight of a ship.Logical formLearned from2 sentences. Lookouts may spot a frigate.Logical formLearned from2 sentences. A frigate may arrive with orders.Logical formLearned from2 sentences. A frigate can be under a male.Logical formLearned from2 sentences. A male may be promoted to lieutenant of a frigate.Logical formLearned from2 sentences. A frigate can be in a month.Logical formLearned from2 sentences. Some frigates may be took.Logical formLearned from2 sentences. A month may sight some frigates.Logical formLearned from2 sentences. (Class frigates) can be with electronics.Logical formLearned from2 sentences. (Class frigates) may undergo a modernization.Logical formLearned from2 sentences. Some (class frigates) may be configured for anti-aircraft warfare.Logical formLearned from2 sentences. A frigate may be commanded by captain.Logical formLearned from2 sentences. A military-or-other-action-organization may operate some frigates.Logical formLearned from2 sentences.