Refactor system prompt for clarity and brevity

app.py

@@ -16,10 +16,8 @@ from llama_index.tools.duckduckgo import DuckDuckGoSearchToolSpec
 DEFAULT_API_URL = "https://agents-course-unit4-scoring.hf.space"
 FETCH_QUESTIONS_LOCAL = True
 
-system_prompt="""You are a general AI assistant. I will ask you a question. Report your thoughts, and finish
-your answer with the following template:
-
-[YOUR FINAL ANSWER]
+system_prompt="""You are a general AI assistant. I will ask you a question. Report your thoughts, and return
+your answer.
 
 YOUR FINAL ANSWER should be a number OR as few words as possible OR a comma separated list of
 numbers and/or strings.