as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
system
write a python function that will count the number of words in a string.
user
def count_words(str): 
  counts = dict() 
  words = str.split() 
  
  for word in words: 
    if word in counts: 
      counts[word] += 1
    else: 
      counts[word] = 1
  
  return counts
assistant