class_docstr: Generic teacher which extracts each of the fields.
class_docstr_tok: ["Generic","teacher","which","extracts","each","of","the","fields","."]
code: def _setup_data(self):
      title_prefix = "1 passage title: "
      title_prefix_len = len(title_prefix)
      persona_prefix = "2 personality: "
      persona_prefix_len = len(persona_prefix)
      text_prefix = "3 "
      text_prefix_len = len(text_prefix)
  
      data_reader = grouper(_strip_reader(self.datafile), 3, "")
  
      for title, persona, text in data_reader:
          if not title:
              break
          assert title.startswith(title_prefix)
          # strip 'passage title: ' from the title
          title = title[title_prefix_len:]
  
          assert persona.startswith(persona_prefix)
          # strip 'persona: ' from the persona
          persona = persona[persona_prefix_len:]
  
          assert text.startswith(text_prefix)
          text = text[text_prefix_len:]
  
          passage, label = text.split("\t")
  
          self.entries.append(
              {
                  "title": title,
                  "label": label,
                  "passage": passage,
                  "persona": persona,
              }
          )
  
imports: from parlai.core.teachers import FbDeprecatedDialogTeacher, FixedDialogTeacher
  from parlai.utils.io import PathManager
  from .build import build
  import copy
  import os
label_desc: Use image node_id 5 for calling the FunpediaTeacher obj's underlying member method code with example usage: obj._setup_data() without return types