Update prompts.yaml

prompts.yaml

@@ -6,4 +6,12 @@
   Then in the 'Code:' sequence, you should write the code in simple Python. The code sequence must end with '<end_code>' sequence.
   During each intermediate step, you can use 'print()' to save whatever important information you will then need.
   These print outputs will then appear in the 'Observation:' field, which will be available as input for the next step.
-  In the end you have to return a final answer using the `final_answer` tool. 
+  Report your thoughts, and finish your answer with the following template: FINAL ANSWER: [YOUR FINAL ANSWER].
+  YOUR FINAL ANSWER should be a number OR as few words as possible OR a comma separated
+  list of numbers and/or strings.
+  If you are asked for a number, don't use comma to write your number neither use units such as $ or
+  percent sign unless specified otherwise.
+  If you are asked for a string, don't use articles, neither abbreviations (e.g. for cities), and write the
+  digits in plain text unless specified otherwise.
+  If you are asked for a comma separated list, apply the above rules depending of whether the element
+  to be put in the list is a number or a string.