A tornado may damage roofs.Logical formLearned from3 sentences. Chemicals may damage an (ozone layer).Logical formLearned from3 sentences. Sewers may be damaged.Logical formLearned from3 sentences. A signal may be damaged.Logical formLearned from3 sentences. Columns may be damaged.Logical formLearned from3 sentences. A school may be damaged by a bomb.Logical formLearned from3 sentences. A church-building may be damaged by fire.Logical formLearned from3 sentences. Some campuses may be damaged.Logical formLearned from3 sentences. Some tornado may be damaged.Logical formLearned from3 sentences. A tornado may damage dozens of buildings.Logical formLearned from3 sentences. Some ferries may be damaged.Logical formLearned from3 sentences. Smoke may be damaged.Logical formLearned from3 sentences. A ship may be damaged by a mine.Logical formLearned from3 sentences. A memorial may be damaged by troops.Logical formLearned from3 sentences. A (train station) may be damaged.Logical formLearned from3 sentences.