$our_hash = {
	'this' => 'that',
	'foo' => ['bar', 'and', 'something', 'else']
};

##</code><code>##

$$our_hash{'somekey'} = {
	'foo' => $$our_hash{'foo'}
};

##</code><code>##

$our_hash = {
	'this' => 'that',
	'foo' => [],
	'somekey' => {
		'foo' => ['bar', 'and', 'something', 'else']
	}
};