Hello, world!
<?xml version="1.0"?>
<List functor="[|]" type="list.list(int)" arity="2">
	<Int type="int">1</Int>
	<List functor="[|]" type="list.list(int)" arity="2">
		<Int type="int">2</Int>
		<List functor="[|]" type="list.list(int)" arity="2">
			<Int type="int">3</Int>
			<Nil functor="[]" type="list.list(int)" arity="0" />
		</List>
	</List>
</List>

[
 4, 
 5, 
 6]
3.14