[xsl] How to organize and query related data (beginners question)

["Mark Marlow" <mark@xxxxxxxxxxx>]

Given two sets of data shown below.  With Test decribing
a test, and Student describing a student who took a test. How 
to structure the XML and query it  to render 
each student, along with their question, answer and whether it
was the correct answer, and a description of the question?

TIA!

Test
   Test-Items
      Section
         Questions
            Question-number
               Correct-Answer
               Description

School
   Student
      Name
      Section
         Answers
            Question-number
               Answer-given