I like to share with you a story. When I was a child and my dad was still alive, he wanted me to buy some soap. He instructed me by saying, “Son, please walk down the main street, turn left at the third junction, go straight, turn right at the end of the road, then turn right again after two streets. When you reach the grocery shop, tell the owner you want to buy green-coloured soap.” And that was how I bought him soap.