Some people write poems to convey certain moods such as sorrow and grief£¬ joy and happiness£¬ comfort and sympathy. Poetry has some distinctive features£¬ including literary devices£¬ rhythm£¬ descriptive language£¬ fewer words and vivid imagery like "a butterfly flying around blossom at dawn". Nursery rhymes£¬ usually the traditional poems or folk songs£¬ often repeat the same words which correspond to children’s understanding£¬ making it easy for innocent children to recite wherever they are. There is also a form of poetry made up offive lines without a complicated format so that amateurs can even write one. A Japanese form of poetry has only three lines with fixed lengths respectively. Furthermore£¬ poems from China are popular£¬ especially those from the Tang Dynasty£¬ a lot of which have been translated into English.