1<?xml version="1.0" encoding="UTF-8"?> 2<out> 3In a, position() is 1 and last() is 2 4In b number 1, $a.pos=1 and $a.last=2 5In b number 2, $a.pos=1 and $a.last=2 6 7In a, position() is 2 and last() is 2 8In b number 1, $a.pos=2 and $a.last=2 9In b number 2, $a.pos=2 and $a.last=2 10In b number 3, $a.pos=2 and $a.last=2 11</out>