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 Black Black Black Black Black Black
Black Black Black Black Black Black Black Black
Black Black Black Pink Gray Gray Green Black
Black Black Black Orange Red Gray Blue Black
Black Black Black Black Black Black Black Black
Black Black Black Black Black Blue Yellow Black
Green Gray Black Black Black Gray Orange Black
Brown Red Black Black Black Black Black Black

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


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

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


Example 3
Input:
Black Black Black Black Black Black Black Black
Black Black Black Black Black Black Black Black
Black Black Black Black Black Black Black Black
Black Black Black Black Black Black Black Black
Black Black Pink Gray Gray Brown Black Black
Black Black Brown Red Yellow Purple Blue Gray
Black Black Black Blue Brown Black Pink Brown
Black Black Black Red Gray Black Black Black

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


Here is the input grid for the test example:
Input:
Black Purple Yellow Black Black Black Black Black
Black Gray Green Black Black Black Black Black
Black Black Black Black Black Black Black Black
Black Red Gray Black Yellow Purple Black Black
Black Gray Orange Black Green Gray Black Black
Black Black Black Black Black Black Black Black
Black Black Black Black Black Gray Yellow Black
Black Black Black Black Black Blue Green Black


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