First Child-NextSibling Representation Element First Child NextSibling B 岛由思 NNI Note: The representation is not unique since the children in a tree can be of any order.❖ FirstChild-NextSibling Representation FirstChild NextSibling Element A B C D E F G H I J K L M N A B C N D E N K N N F N N G H N I N N J N N L N N M Note: The representation is not unique since the children in a tree can be of any order