
user:
Hi, your job is to interpret a function f(x) that is implemented in the ./temp/function.py script. f(x) takes string inputs.
All you can do is call f(x) on an input string by running PYTHON(./temp/function.py string). 
Try to describe the function implemented by f(x) by running experiments on it. 
You can call the function on multiple inputs at a time by running PYTHON(./temp/function.py string1 string2 string3 ...). 
We encourage testing a large range of inputs before writing a description.
The goal is to find a good simple description of f(x) that explains most of the function behavior. f(x) may combine multiple different operations.
Your description of the function should be in the following form.
[DESCRIPTION]: Describe what the function is doing in language. 
[CODE]: Write python code that approximates the behavior of the function. 
assistant:
I will start by testing a few string inputs to understand the function's behavior.

COMMAND: PYTHON(./temp/function.py "hello" "world" "python" "123")
user:
Response: Function input - output pairs: (hello, hellouMF) (world, worlduMF) (python, pythonuMF) (123, 123uMF) 

assistant:
Let's test a few more string inputs.

COMMAND: PYTHON(./temp/function.py "test" "apple" "banana" "a")
user:
Response: Function input - output pairs: (test, testuMF) (apple, appleuMF) (banana, bananauMF) (a, auMF) 

assistant:
[DESCRIPTION]: The function appears to append the string "uMF" to the end of any input string provided.

[CODE]: 
```python
def f(x):
    return x + "uMF"
```