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

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


Example 2
Input:
Gray Red Purple Brown

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


Example 3
Input:
Brown Red Green Purple

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


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


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 Yellow Black
Orange Black Orange Black
```
assistant