input: Write a function to determine the number of sentences that begin with the word 'I' in a given string. Sentences in the string can be separated by '.', '?' or '!'.
  assert count_boredoms("Hello world") == 0
  assert count_boredoms("Is the sky blue?") == 0
  assert count_boredoms("I love It !") == 1
  assert count_boredoms("bIt") == 0
  assert count_boredoms("I feel good today. I will be productive. will kill It") == 2
  assert count_boredoms("You and I are going for a walk") == 0
output: def count_boredoms(s):
      import re
      sentences = re.split(r'[.!?]', s)
      count = 0
      for sentence in sentences:
          words = sentence.strip().split()
          if words and words[0] == 'I':
              count += 1
      return count