$VAR1 = {
	'no_tag' => [
		'word1',
		'word6',
		'word9',
		'word11'
	],
	'tag0' => [
		'word2',
		'word5'
	],
	'tag1' => [
		'word3',
		'word4'
	],
	'tag2' => [
		'word7',
		'word8'
	],
	'tag3' => [
		'word10'
	]
};