伯劳鸟不是国家级保护动物，但伯劳鸟是三有保护动物，不可随意捕捉，猎杀。羽毛一般都是灰色或者淡褐色，翅膀和尾巴都是黑色且带有白色的斑，眼睛周围是一圈黑色。性格凶猛，是食虫鸟类，喜欢吃小型兽类，鸟类，蜥蜴
I\'m trying to create permalink like behavior for some article titles and i don\'t want to add a new db field for permalink. So i decided to write a helper that will convert my article title from:
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