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:
Black Black Yellow Yellow
Yellow Black Yellow Black
Black Yellow Black Yellow
Yellow Black Yellow Yellow

Output:
Black Black Yellow Yellow Black Black Yellow Yellow
Yellow Black Yellow Black Yellow Black Yellow Black
Black Yellow Black Yellow Black Yellow Black Yellow
Yellow Black Yellow Yellow Yellow Black Yellow Yellow
Black Black Yellow Yellow Black Black Yellow Yellow
Yellow Black Yellow Black Yellow Black Yellow Black
Black Yellow Black Yellow Black Yellow Black Yellow
Yellow Black Yellow Yellow Yellow Black Yellow Yellow


Example 2
Input:
Green Green Black Black
Green Black Black Black
Black Green Green Green
Green Green Black Black

Output:
Green Green Black Black Green Green Black Black
Green Black Black Black Green Black Black Black
Black Green Green Green Black Green Green Green
Green Green Black Black Green Green Black Black
Green Green Black Black Green Green Black Black
Green Black Black Black Green Black Black Black
Black Green Green Green Black Green Green Green
Green Green Black Black Green Green Black Black


Example 3
Input:
Black Green Green Black
Green Green Green Green
Green Green Green Green
Green Black Green Black

Output:
Black Green Green Black Black Green Green Black
Green Green Green Green Green Green Green Green
Green Green Green Green Green Green Green Green
Green Black Green Black Green Black Green Black
Black Green Green Black Black Green Green Black
Green Green Green Green Green Green Green Green
Green Green Green Green Green Green Green Green
Green Black Green Black Green Black Green Black


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

```
Black Gray Black Black Black Gray Black Black
Black Gray Gray Gray Black Gray Gray Gray
Gray Black Gray Black Gray Black Gray Black
Gray Black Gray Gray Gray Black Gray Gray
Black Gray Black Black Black Gray Black Black
Black Gray Gray Gray Black Gray Gray Gray
Gray Black Gray Black Gray Black Gray Black
Gray Black Gray Gray Gray Black Gray Gray
```
assistant