- new Tree(null, "/", new Tree[] { new Tree(null, "ps", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "^", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "!", new Tree[] { })})}),
- new Tree(null, "nonTerminal", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "e", new Tree[] { })})})})}),
- new Tree(null, "nonTerminal", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "w", new Tree[] { }),
- new Tree(null, "s", new Tree[] { })})})}),