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 Orange Orange Black Black Black Black
Black Orange Orange Green Black Black Black
Black Green Orange Green Black Black Black
Black Green Green Green Black Black Black
Black Black Black Black Black Black Black
Black Black Black Black Black Black Black

Output:
Black
Green


Example 2
Input:
Black Black Black Black Black Black Black Black Black
Black Black Black Black Black Black Black Black Black
Black Gray Gray Gray Black Gray Gray Gray Black
Black Gray Green Gray Black Gray Orange Gray Black
Black Gray Gray Gray Black Gray Gray Gray Black
Black Black Black Black Black Black Black Black Black
Black Black Black Black Brown Brown Brown Black Black
Black Black Black Black Brown Blue Brown Black Black
Black Black Black Black Brown Brown Brown Black Black

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


Example 3
Input:
Black Black Black Black Black
Pink Pink Black Black Black
Pink Pink Yellow Yellow Black
Pink Pink Pink Yellow Black
Black Yellow Red Red Black
Black Black Red Red Black

Output:
Black
Yellow


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

```
Black
Gray
```
assistant