code: def exact_match_score(prediction, ground_truth):
      """Compute normalized exact match
      From official ReCoRD eval script
      """
      return normalize_answer(prediction) == normalize_answer(
          ground_truth
      )
  
imports: import re
  import string
  import collections
label_desc: Use image node_id 3 for calling a global function with example usage: exact_match_score(prediction, ground_truth) and returns: unknown