We have made the following changes:

This is only a summary. They were discussed in class:

// is replaced by /+/
Strategies are between " and "
XPath expressions are between " and "

XPath context node: XYZ
is added at the beginning of a traversal aspect.

Use only one of | and union.

Now that we have added a context node, we only need /+/A or /B.

The following two classes will not be used in XPath test cases:
public Intersect="intersect".
public Complement="except".