<biography xmlns:xlink="http://www.w3.org/1999/xlink/namespace/">

  <image source="http://www.turing.org.uk/turing/pi1/bus.jpg" 
  width="152" height="345"/> 
  <person born='1912/06/23' 
  died='1954/06/07'><first_name>Alan</first_name> 
  <last_name>Turing</last_name> </person> was one of the first people 
  to truly deserve the name <emphasize>computer scientist</emphasize>. 
  Although his contributions to the field were too numerous to list,  
  his best-known are the eponymous <emphasize xlink:type="simple" 
  xlink:href="http://cogsci.ucsd.edu/~asaygin/tt/ttest.html">Turing 
  Test</emphasize> and <emphasize  xlink:type="simple" 
  xlink:href="http://mathworld.wolfram.com/TuringMachine.html">Turing 
  Machine</emphasize>. 

  <last_name>Turing</last_name> was also an accomplished     
  <profession>mathematician</profession> and 
  <profession>cryptographer</profession>. His assistance  
  was crucial in helping the Allies decode the German Enigma 
  machine.<footnote source="The Ultra Secret, F.W. Winterbotham, 
  1974">1</footnote>

  He committed suicide on <date><month>June</month> <day>7</day>,   
  <year>1954</year></date> after being convicted of homosexuality  
  and forced to take female hormone injections.<footnote 
  source="Alan Turing: the Enigma, Andrew Hodges, 1983">2</footnote>

</biography>
