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:
Gray Gray Black Black Gray Gray
Gray Pink Black Black Pink Gray
Gray Pink Black Black Pink Gray
Gray Gray Black Black Gray Gray

Output:
Gray Gray Gray Gray
Gray Pink Pink Gray
Black Black Black Black
Black Black Black Black
Gray Pink Pink Gray
Gray Gray Gray Gray


Example 2
Input:
Black Orange Brown Pink Pink Purple
Green Blue Blue Blue Orange Purple
Green Blue Blue Blue Orange Purple
Black Orange Brown Pink Pink Purple

Output:
Black Green Green Black
Orange Blue Blue Orange
Brown Blue Blue Brown
Pink Blue Blue Pink
Pink Orange Orange Pink
Purple Purple Purple Purple


Example 3
Input:
Black Black Black Purple Purple
Black Black Black Purple Purple
Black Black Black Purple Purple

Output:
Black Black Black
Black Black Black
Black Black Black
Purple Purple Purple
Purple Purple Purple


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

```
Red Red Red Red
Red Black Black Red
Red Gray Gray Red
Gray Yellow Yellow Gray
```
assistant