
1. Tokenize the name of the third juicer.

   tokenize(//juicer[3]/name, ' ')


2. The result of your XPath expression from (1) is a sequence. Select the first item
   in the sequence.

   tokenize(//juicer[3]/name, ' ')[1]


3. Tokenize the URL in the first juicer's retailer element, i.e., split this:

   http://www.thewhitewhale.com/oj.htm

   into this sequence: (http, www, thewhitewhale, com, oj, htm)


   tokenize(//juicer[1]/retailer, '(://)|(\.)|(/)')