In our minds there is a ladder, called mental position ladder, an emotional position stepped in, ranking first of course is the best, the second is also good. Because changes may occur at any time between first, second, third face many threats, ahead of IV could be eliminated. So we must have this concept, as far as possible to do the first or the second. First, the second after facing a lot of difficulties and pressures, third, fourth, often going to compete through price wars, and I always compare price war against.