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:
Gray
Blue
Green
Red

Output:
Gray Black Black Black
Blue Gray Black Black
Green Blue Gray Black
Red Green Blue Gray


Example 2
Input:
Gray
Red
Purple
Brown
Blue

Output:
Gray Black Black Black Black
Red Gray Black Black Black
Purple Red Gray Black Black
Brown Purple Red Gray Black
Blue Brown Purple Red Gray


Example 3
Input:
Brown
Red
Green
Purple
Pink

Output:
Brown Black Black Black Black
Red Brown Black Black Black
Green Red Brown Black Black
Purple Green Red Brown Black
Pink Purple Green Red Brown


Here is the input grid for the test example:
Input:
Yellow
Orange
Green


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:

```
Yellow Black Black
Orange Yellow Black
Green Orange Yellow
```
assistant