for $c in fn:doc("mondial.xml")//country
return
  <country name = "{string($c/name)}"
     maxthing = "{ if($c/province)
                   then $c/province[population[last()] =
                        max($c/province/population[last()])] /name[1]
                   else $c/city[population[last()] =
                        max($c/city/population[last()])] /name[1]
                 }"
     maxpop   = "{ if($c/province)
                     then $c/province[population[last()] =
                          max($c/province/population[last()])] /population[last()]
                     else $c/city[population[last()] =
                          max($c/city/population[last()])] /population[last()]
                 }"/>