This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
An example in XPath should be sufficient. You can use XSLT to implement that XPath if you like, or any other XML implementation that supports XPath.Translation: Find a table element at any depth in the tree whose class attribute has the value "aa", then find its tr children, then find their td children.