No duplicate

Hi!

I have an xml like this, but longer:

<?xml version="1.0"?>
<STRINGS>
  <R1 NAME="record">
    <R0 IND="0">
      <S0 NAME="name">Tom</S0>
      <S0 NAME="number">8042</S0>
      <S0 NAME="country">Netherlands</S0>
    </R0>
    <R0 IND="1">
      <S0 NAME="name">Eric</S0>
      <S0 NAME="number">67542</S0>
      <S0 NAME="country">Finland</S0>
    </R0>
    <R0 IND="2">
      <S0 NAME="name">Paul</S0>
      <S0 NAME="number">442</S0>
      <S0 NAME="country">Netherlands</S0>
    </R0>
  </R1>
</STRINGS>

What I wan't is a list including all the contries, like this:

Netherlands,
Finland,
Sweden,
etc.

But I don't wan't one country to appear in the list more than once. Is
this possible?

Thank you!
/Henrik


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