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:
Blue Blue Black Black
Blue Blue Black Black
Black Black Black Black
Black Black Black Black

Output:
Blue Blue Blue Blue
Blue Blue Blue Blue
Blue Blue Blue Blue
Blue Blue Blue Blue


Example 2
Input:
Brown Brown Black Black
Brown Brown Black Black
Black Black Black Black
Black Black Black Black

Output:
Brown Brown Brown Brown
Brown Brown Brown Brown
Brown Brown Brown Brown
Brown Brown Brown Brown


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

Output:
Blue Blue Blue Blue
Blue Blue Blue Blue
Blue Blue Green Green
Blue Blue Green Green


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

```
Brown Brown Gray Gray
Brown Brown Gray Gray
Gray Gray Orange Orange
Gray Gray Orange Orange
```
assistant