It cannot be divided into groups to find out the relationship between a sweet knock of watermelon. But the way in which the group can be split 3 to find out the relationship between the flesh of the melon tap sound.
How can such a group to investigate the relationship between a knock on the sweetness of the watermelon, but how can three segments to the relationship between a knock on the texture of watermelon.
This method can divide the relationship between knock with the sweetness of the watermelon, but how 3 can be divided into groups to find out the relationship between the sound of knocking with texture ของแตงโม.