Complex sentence: Ala Moana Center, commonly known simply as Ala Moana, is the largest shopping mall in Hawaii, the fifteenth largest shopping mall in the United States, and the largest open-air shopping center in the world.
Split into simpler sentences: Ala Moana Center, commonly known simply as Ala Moana, is the largest shopping mall in Hawaii. It is also the fifteenth largest shopping mall in the United States, and the largest open-air shopping center in the world.