code: def remove_acronym_symbols(text):
      """
      Remove symbols according to the Fisher acronym convention.
      This splits acronyms written as u._c._l._a._ into single characters (e.g. u c l a)
  
      Parameters
      ----------
      text : str
          Input text
  
      Returns
      -------
      A string containing the cleaned text.
  
      """
      cleaned_text = re.sub(r"\._", " ", text)
      cleaned_text = re.sub(r"\.", "", cleaned_text)
      cleaned_text = re.sub(
          r"them_1", "them", cleaned_text, flags=re.IGNORECASE
      )
      return cleaned_text
  
imports: import re
  import csv
  import logging
  import os
  from collections import defaultdict
  from speechbrain.dataio.dataio import merge_csvs
  from speechbrain.utils.data_utils import download_file, get_all_files
label_desc: Use image node_id 11 for calling a global function with example usage: remove_acronym_symbols(text) and returns: cleaned_text