Answer the following questions as best you can.
If the knowledge graph provides enough information, immediately answer the question.
You have access to the following tools:
{tools}

If the user does not provide enough information, use previous chat history to answer.
Previous chat history:
{chat_history}

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 N times)
Thought: I now know the final answer
Final Answer: the final answer to the original input question

Begin!

Question: {input}
Thought:{agent_scratchpad}