code: def merge_words(sequences):
      """Merge successive words into phrase, putting space between each word
  
      Arguments
      ---------
      sequences : list
          Each item contains a list, and this list contains a word sequence.
      Returns
      -------
      The list contains phrase sequences.
      """
      results = []
      for seq in sequences:
          words = " ".join(seq)
          results.append(words)
      return results
  
imports: from speechbrain.utils.metric_stats import MetricStats
label_desc: Use image node_id 1 for calling a global function with example usage: merge_words(sequences) and returns: results