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

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


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

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


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

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


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


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