A person may use blue.Logical formLearned from21 sentences. Blue eyes may look at a female.Logical formLearned from21 sentences. Blue eyes may stare.Logical formLearned from21 sentences. A phosphor can be blue.Logical formLearned from21 sentences. A backing can be blue.Logical formLearned from21 sentences. A puff can be constituted-of-or-filled-with blue smoke.Logical formLearned from21 sentences. A bit can be constituted-of-or-filled-with blue sky.Logical formLearned from21 sentences. A pouch can be blue.Logical formLearned from21 sentences. A complex can be blue.Logical formLearned from21 sentences. (Tennis shoes) can be blue.Logical formLearned from21 sentences. Cheeks can be blue.Logical formLearned from21 sentences. Hats can be blue.Logical formLearned from21 sentences. A show-biz-star may be knowned for blue eyes.Logical formLearned from21 sentences. A front can be blue.Logical formLearned from21 sentences. A mini can be blue.Logical formLearned from21 sentences.