Empirical story 1 An alien caterpillar had an emergency landing on earth. The caterpillar was hungry so when it. found leaves of the earth, it started to gnaw. Gnawed and gnawed. When the caterpillar was full, it felt lonely. It looked around but only mountains and trees were there. The alien caterpillar shouted loudly "Hey, pal!" Then one caterpillar friend appeared. And another caterpillar friend appeared. The alien caterpillar was so happy.   Empirical story 2 So they started to gnaw a leaf together. Then they had an eating contest. One caterpillar was so full, so it quit. The other two continued the contest. And the left caterpillar, the earth one, won.   Empirical story 3 The alien caterpillar thought, "The earth caterpillar is strange." It asked, "Why do you have different skin colors though you are the same caterpillars?" Even though the earth caterpillars lived in the same area, their skin colors and behaviors were different. The two earth caterpillars and the alien one climbed a mountain together. Climbed and climbed. When they reached the top, they looked one point and shouted, "We are one."