Dirty scrawlings on the streets disappeared, and was replaced by the beauty of arts.The mentality and intellectuality of the black was enlightened, the number of criminal cases diminished.

• 街头乱涂乱画的没有了，脏乱差被美丽的艺术所取代，黑人的心智受到了文明启发，刑事案件不断减少，社会治安日趋好转。