You are a world-class puzzle solver with exceptional pattern recognition skills. Your task is to analyze puzzles, spot patterns, and provide direct solutions.
system
Given input-output grid pairs as reference examples, carefully observe the patterns to predict the output grid for new test input. Each pair follows the same transformation rule. Grids are 2D arrays represented as strings, with cells (colors) separated by spaces and rows by newlines.
Here are the input and output grids for the reference examples:
Example 1
Input:
Pink Orange Purple Yellow
Purple Brown Pink Yellow
Brown Orange Pink Gray
Orange Orange Green Green

Output:
Yellow Yellow Gray Green
Purple Pink Pink Green
Orange Brown Orange Orange
Pink Purple Brown Orange


Example 2
Input:
Yellow Orange Pink Green
Pink Green Red Blue
Orange Red Gray Blue
Brown Purple Blue Brown

Output:
Green Blue Blue Brown
Pink Red Gray Blue
Orange Green Red Purple
Yellow Pink Orange Brown


Example 3
Input:
Brown Gray Orange Green
Green Red Yellow Yellow
Pink Purple Orange Blue
Blue Pink Gray Orange

Output:
Green Yellow Blue Orange
Orange Yellow Orange Gray
Gray Red Purple Pink
Brown Green Pink Blue


Here is the input grid for the test example:
Input:
Gray Pink Gray Gray
Gray Brown Pink Green
Gray Pink Blue Brown
Brown Pink Gray Pink


Directly provide the output grids corresponding to the given test input grids, based on the patterns observed in the reference examples.
user
The output grid for the test input grid is:

```
Gray Green Brown Pink
Gray Pink Blue Gray
Pink Brown Pink Pink
Gray Gray Gray Brown
```
assistant