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 Black Black Black Green
Black Purple Orange Green Black
Black Brown Pink Green Black
Black Pink Gray Brown Black
Gray Black Black Black Gray

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


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

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


Example 3
Input:
Red Black Black Black Brown
Black Blue Pink Pink Black
Black Green Purple Gray Black
Black Red Orange Orange Black
Pink Black Black Black Pink

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


Here is the input grid for the test example:
Input:
Green Black Black Black Blue
Black Gray Pink Gray Black
Black Brown Blue Pink Black
Black Pink Brown Gray Black
Yellow Black Black Black Yellow


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 Black Black Black Black
Black Yellow Yellow Yellow Black
Black Yellow Yellow Yellow Black
Black Yellow Yellow Yellow Black
Black Black Black Black Black
```
assistant