A roof of a home may collapse.Logical formLearned from20 sentences. A roof of a (ventilation shaft) may collapse during (reconstruction work).Logical formLearned from20 sentences. Roofs may pertain-to houses.Logical formLearned from20 sentences. A roof may pertain-to a vehicle.Logical formLearned from20 sentences. (Roof tiles) may fall on a head.Logical formLearned from20 sentences. A stadium can be with a retractable roof.Logical formLearned from20 sentences. Sales can be through a roof.Logical formLearned from20 sentences. Some houses may lose roofs.Logical formLearned from20 sentences. A roof can be innovative.Logical formLearned from19 sentences. A hipped roof can be high.Logical formLearned from19 sentences. A roof may pertain-to a gallery.Logical formLearned from19 sentences. A (roof ballroom) may pertain-to a us-state.Logical formLearned from19 sentences. A roof may be constructed.Logical formLearned from19 sentences. An opening can be in a roof of a mouth.Logical formLearned from19 sentences. A roof can be angled.Logical formLearned from19 sentences.