code: def step_0(word):
      if word.endswith("'s'"):
          return word[:-3]
      if word.endswith("'s"):
          return word[:-2]
      if word.endswith("'"):
          return word[:-1]
      return word
  
imports: import re
label_desc: Use image node_id 7 for calling a global function with example usage: step_0(word) and returns: word, word, word, word