code: def palindromic_substrings(s):
      if not s:
          return [[]]
      results = []
      for i in range(len(s), 0, -1):
          sub = s[:i]
          if sub == sub[::-1]:
              for rest in palindromic_substrings(s[i:]):
                  results.append([sub] + rest)
      return results
  
label_desc: Use image node_id 1 for calling a global function with example usage: palindromic_substrings(s) and returns: results, list