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
construct a table to compare the effectiveness of 5 different treatments
user
treatment  |  effectiveness  | 
-----------------------------------
treatment 1  |  x  | 
treatment 2  |  y  | 
treatment 3  |  z  | 
treatment 4  |  a  | 
treatment 5  |  b  |
assistant