Lightning can be in a sky.Logical formLearned from5 sentences. Lightning can be in the atmosphere.Logical formLearned from5 sentences. Data can be on physics of lightning.Logical formLearned from5 sentences. Lightning may cause some deaths.Logical formLearned from5 sentences. A sheet can be constituted-of-or-filled-with lightning.Logical formLearned from5 sentences. Damage can be by lightning.Logical formLearned from5 sentences. Information can be about lightning.Logical formLearned from5 sentences. Lightning may cause fires.Logical formLearned from5 sentences. An average of some persons may be killed by lightning.Logical formLearned from5 sentences. A photo may show lightning.Logical formLearned from5 sentences. Lightning can be in storms.Logical formLearned from5 sentences. Lightning may cause casualties.Logical formLearned from5 sentences. Lightning may undergo a detection.Logical formLearned from5 sentences. (Lightning protection systems) may undergo an installation.Logical formLearned from5 sentences. Lightning may strike that something-is-the-case.Logical formLearned from5 sentences.