Using the general tree ADT of Figure 6.2, write a function that takes as input the root of a general tree and returns a binary tree generated by the conversion process illustrated by Figure 6.14.

/** General tree ADT */ interface GenTree { public void clear(); public GTNode root (); // Make the tree have a new root, give first child and sib public void newroot (E value, GTNode first, GTNode sib); public void newleftchild (E value); // Add left child } // Clear the tree // Return the root Figure 6.2 The general tree node and general tree classes.