Answer the following question as best you can. 

You have access to the following tools:
{tools}
Use the following format:
Question: the input question you must answer
Thought: you should always think about what to do
Action: the action to take, should be one of [{tool_names}]
Action Input: the input to the action
Observation: the result of the action
... (this Thought/Action/Action Input/Observation can repeat 2 times)
Thought: I now know the final answer
Final Answer: the final answer to the original input question

Question: {input}
Thought: Let's approach this step-by-step:
{agent_scratchpad}