code: def add_word_start(sent):
      ns = []
      do_add = True
      ws = "▁"
      for p in sent:
          if do_add:
              p = ws + p
              do_add = False
          if p == " ":
              do_add = True
          else:
              ns.append(p)
      return ns
  
file_path: fairseq/examples/speech_text_joint_to_text/scripts/g2p_encode.py
imports: import argparse
  import itertools
  import logging
  import re
  import time
  from g2p_en import G2p
label_desc: Use image node_id 7 for calling a global function with example usage: add_word_start(sent) and returns: ns