class_docstr: Class to Get the sentence in this format:
  [(Token_1, Part_of_Speech_1, Tag_1), ..., (Token_n, Part_of_Speech_1, Tag_1)]
class_docstr_tok: ["Class","to","Get","the","sentence","in","this","format",":","[","(","Token_1",",","Part_of_Speech_1",",","Tag_1",")",",","...",",","(","Token_n",",","Part_of_Speech_1",",","Tag_1",")","]"]
docstr: Return one sentence
docstr_tok: ["Return","one","sentence"]
code: def get_next(self):
      """Return one sentence"""
      try:
          s = self.grouped["Sentence: {}".format(self.n_sent)]
          self.n_sent += 1
          return s
      except:
          return None
  
imports: from ...None import utils
  from ...imports import *
  from ...preprocessor import Preprocessor
  from ..None import preprocessor
  from ..None import textutils
label_desc: Use image node_id 2 for calling the SentenceGetter obj's underlying member method code with example usage: obj.get_next() and returns: s, None