code: def _tokenize_raw_text(raw_text):
      """Tokenize raw text"""
      return [x.split() for x in raw_text]
  
imports: import random
  import typing
  import numpy
  import pytest
  from datasets import load_dataset
  from nltk import download
  from nltk.corpus import movie_reviews
  from deepchecks.nlp.datasets.classification import just_dance_comment_analysis, tweet_emotion
  from deepchecks.nlp.text_data import TextData
label_desc: Use image node_id 16 for calling a global function with example usage: _tokenize_raw_text(raw_text) and returns: unknown