input: Write a function to determine if the first string contains the second string. If it does, return True, otherwise return False.
  def check_contains(query, word): 
      if query.find(word) != -1:
          return True
      return False
  assert check_contains("catering", "cat")==True
  assert check_contains("programming", "gram")==True
  assert check_contains("python", "java")==False
  assert check_contains("machine learning", "ner")==True
  assert check_contains("data science", "analyst")==False
output: def check_contains(query, word): 
      if query.find(word) != -1:
          return True
      return False