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 Purple Orange Pink

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


Example 2
Input:
Green Pink Orange Yellow

Output:
Green Pink Orange Yellow
Green Pink Orange Yellow
Green Pink Orange Yellow
Green Pink Orange Yellow


Example 3
Input:
Green Orange Gray Brown

Output:
Green Orange Gray Brown
Green Orange Gray Brown
Green Orange Gray Brown
Green Orange Gray Brown


Here is the input grid for the test example:
Input:
Gray Gray Pink 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 Pink Gray
Gray Gray Pink Gray
Gray Gray Pink Gray
Gray Gray Pink Gray
```
assistant