input: Write a python function to detect gender bias in a given text.
  assert detect_gender_bias("He is a strong leader.") > 0
  assert detect_gender_bias("She is a nurse.") > 0
  assert detect_gender_bias("The software requires a text string to query.") == 0
output: def detect_gender_bias(text):
      male_bias_words = {"he", "him", "his", "man", "men", "male", "boy", "boys"}
      female_bias_words = {"she", "her", "hers", "woman", "women", "female", "girl", "girls"}
      
      words = text.lower().split()
      male_count = sum(word in male_bias_words for word in words)
      female_count = sum(word in female_bias_words for word in words)
      
      return male_count + female_count