(Police barricades) can be blue.Logical formLearned from22 sentences. An atmosphere can be blue.Logical formLearned from22 sentences. An egg can be blue.Logical formLearned from22 sentences. A hill can be blue.Logical formLearned from22 sentences. Cities can be blue.Logical formLearned from22 sentences. (Crab populations) can be blue.Logical formLearned from22 sentences. Clusters can be constituted-of-or-filled-with blue flowers.Logical formLearned from22 sentences. A run can be blue.Logical formLearned from22 sentences. A blue eye can be bright.Logical formLearned from22 sentences. Snow can be blue.Logical formLearned from22 sentences. Blue seas can be clear.Logical formLearned from22 sentences. Fireworks can be blue.Logical formLearned from22 sentences. A male may be dressed in a blue suit.Logical formLearned from22 sentences. A sweatsuit can be blue.Logical formLearned from22 sentences. A harbor can be blue.Logical formLearned from22 sentences.