with the label of its incoming arc.
• In case |span(v)| > 1 add a new node u as a daughter designating the lexical head, labeled with the wildcard symbol *: , add a new node u as a daughter, labeled with its own terminal: to say, we label all nodes with spans greater than 1 with the grammatical function of their head, and for each node we add a new daughter u designating the head word, labeled with its grammatical function.