A sign can be on a roof.Logical formLearned from14 sentences. Roofs can be rounded.Logical formLearned from14 sentences. A (roof construction) can be flat.Logical formLearned from14 sentences. Roofs can be shaped.Logical formLearned from14 sentences. A roof may pertain-to a (gas station).Logical formLearned from14 sentences. Passengers may sit on a roof.Logical formLearned from14 sentences. A person may see a roof.Logical formLearned from14 sentences. Accordance can be with a (roof control plan).Logical formLearned from14 sentences. A (roof material) can be fallen.Logical formLearned from14 sentences. A roof can be friendly.Logical formLearned from14 sentences. A roof may pertain-to a nest.Logical formLearned from14 sentences. A guy can be on a roof.Logical formLearned from14 sentences. A roof can be above heads.Logical formLearned from14 sentences. A person may fall_off a roof.Logical formLearned from14 sentences. A roof can be in need of repair.Logical formLearned from14 sentences.