code: def fetch_sentence(file):
      sentence = ""
      with open(file) as f:
          for i, line in enumerate(f):
              if line == "\n":
                  yield i, sentence
                  sentence = ""
              else:
                  sentence += line
  
file_path: underthesea/underthesea/corpus/validate_corpus.py
imports: import sys
  from os import listdir
  from os.path import join, basename
  import charset_normalizer
  from underthesea.feature_engineering.text import Text
  from underthesea.file_utils import DATASETS_FOLDER
  from underthesea.pipeline.word_tokenize import tokenize
label_desc: Use image node_id 5 for calling a global function with example usage: fetch_sentence(file) without return types