
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:
Alright, let's start by testing some inputs. 

COMMAND: PYTHON(./temp/function.py "hello" "world" "test" "python")
user:
Response: Function input - output pairs: (hello, _ELLO) (world, nORLD) (test, kEST) (python, gYTHON) 

assistant:
Interesting. Let's test more inputs to get a better understanding of the function.

COMMAND: PYTHON(./temp/function.py "apple" "banana" "cat" "dog" "elephant" "fish" "grape")
user:
Response: Function input - output pairs: (apple, XPPLE) (banana, YANANA) (cat, ZAT) (dog, [OG) (elephant, \LEPHANT) (fish, ]ISH) (grape, ^RAPE) 

assistant:
Thank you. Let's test a few more inputs to confirm the pattern.

COMMAND: PYTHON(./temp/function.py "robot" "machine" "universe" "space" "computer")
user:
Response: Function input - output pairs: (robot, iOBOT) (machine, dACHINE) (universe, lNIVERSE) (space, jPACE) (computer, ZOMPUTER) 

assistant:
[DESCRIPTION]: The function replaces the first character of the input string with the next character in the ASCII table. In other words, it increments the ASCII value of the first character by 1.

[CODE]: 
```python
def f_approx(x):
    return chr(ord(x[0]) + 1) + x[1:]
```
