Skin can be around blue eyes.Logical formLearned from15 sentences. (Lightning bolts) can be blue.Logical formLearned from15 sentences. A carnation can be blue.Logical formLearned from15 sentences. A (neon sign) can be blue.Logical formLearned from15 sentences. Persons may see a blue sky.Logical formLearned from15 sentences. A mosaic can be blue.Logical formLearned from15 sentences. A cellophane can be blue.Logical formLearned from15 sentences. (Waist band) can be blue.Logical formLearned from15 sentences. A cocktail can be blue.Logical formLearned from15 sentences. A tray can be blue.Logical formLearned from15 sentences. Blue eyes may twinkle.Logical formLearned from15 sentences. A knapsack can be blue.Logical formLearned from15 sentences. A fluff can be blue.Logical formLearned from15 sentences. An aluminum can be blue.Logical formLearned from15 sentences. Corduroys can be blue.Logical formLearned from15 sentences.