An altar can be sapphire.Logical formLearned from2 sentences. Single crystals can be sapphire.Logical formLearned from2 sentences. Software can be sapphire.Logical formLearned from2 sentences. A speed may pertain-to a sapphire worm.Logical formLearned from2 sentences. A speed of a sapphire worm may represent milestones.Logical formLearned from2 sentences. Lakes can be sapphire.Logical formLearned from2 sentences. An image can be sapphire.Logical formLearned from2 sentences. (Laser systems) can be sapphire.Logical formLearned from2 sentences. A (laser system) can be sapphire.Logical formLearned from2 sentences. A pavement can be sapphire.Logical formLearned from2 sentences. Mines can be sapphire.Logical formLearned from2 sentences. A stare can be sapphire.Logical formLearned from2 sentences. A blue sky can be sapphire.Logical formLearned from2 sentences. A face can be sapphire.Logical formLearned from2 sentences. Berries can be sapphire.Logical formLearned from2 sentences.