A roof can be lowered.Logical formLearned from11 sentences. A (roof industry) can be green.Logical formLearned from11 sentences. A roof can be elevated.Logical formLearned from11 sentences. A roof may rise.Logical formLearned from11 sentences. Roofs may pertain-to houses.Logical formLearned from11 sentences. A roof may pertain-to a cloister.Logical formLearned from11 sentences. A roof may pertain-to a tube.Logical formLearned from11 sentences. Windows can be in a roof.Logical formLearned from11 sentences. A roof can be old.Logical formLearned from11 sentences. A (roof fall) may occur.Logical formLearned from11 sentences. (Roof conditions) can be hazardous.Logical formLearned from11 sentences. A position can be on a roof.Logical formLearned from11 sentences. A female may stand on a roof.Logical formLearned from11 sentences. Areas may pertain-to a roof.Logical formLearned from11 sentences. A roof may pertain-to a friend.Logical formLearned from11 sentences.