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:
Yellow Yellow Yellow Yellow
Purple Purple Purple Purple
Orange Orange Orange Orange
Pink Pink Pink Pink

Output:
Green Green Green Green
Purple Purple Purple Purple
Orange Orange Orange Orange
Pink Pink Pink Pink


Example 2
Input:
Green Green Green Green
Pink Pink Pink Pink
Orange Orange Orange Orange
Yellow Yellow Yellow Yellow

Output:
Blue Blue Blue Blue
Pink Pink Pink Pink
Orange Orange Orange Orange
Green Green Green Green


Example 3
Input:
Green Green Green Green
Orange Orange Orange Orange
Gray Gray Gray Gray
Brown Brown Brown Brown

Output:
Blue Blue Blue Blue
Orange Orange Orange Orange
Gray Gray Gray Gray
Brown Brown Brown Brown


Here is the input grid for the test example:
Input:
Purple Purple Purple Purple
Gray Gray Gray Gray
Yellow Yellow Yellow Yellow
Gray Gray 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:

```
Purple Purple Purple Purple
Gray Gray Gray Gray
Green Green Green Green
Gray Gray Gray Gray
```
assistant