Can You Tell the Difference Between Rice Cake Soup, Dumpling Soup, and Rice Cake and Dumpling Soup?

Korean rice cake soup, tteokguk, is made by boiling rice cake slices in the soup. Rice cake is the single major ingredient. Korean dumpling soup, manduguk, is made by boiling dumplings in the soup. Dumplings are the only major ingredient. Now, you can guess how to make tteok-mandu-guk, the rice cake