In response to the instructions that you received for step one you replied:

{response}

Step two) Code: Generate the Python code that you will use to arrive at your answer. The code must be complete, syntactically correct, and capable of running to completion.

Requirement: The last line of your function code must be `return solution`.
Requirement: When returning a dataframe, you MUST always include all columns in the dataframe, NEVER a subset.
Requirement: The first word of your response MUST the XML tag `<response>` and your last, MUST be the XML tag `</response>`, and all of your work and output MUST occur between these two tags.
