code: def normalize_answer(a):
      # Lower case
      # Trim (left and right)
      # Replace multiple spaces with one space
      # Remove trailing punctuation
      return re.sub(
          r"[\.\!\?]+$", "", re.sub(r"\s+", " ", a.strip().lower())
      )
  
imports: import os
  import json
  import re
  import sys
  import argparse
label_desc: Use image node_id 1 for calling a global function with example usage: normalize_answer(a) and returns: re