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:
Orange Orange Brown Brown Orange Red Red Red Red Orange Brown Brown
Gray Orange Pink Brown Gray Red Red Red Red Orange Pink Brown
Yellow Yellow Green Purple Yellow Red Red Red Red Yellow Green Purple

Output:
Orange Orange Black Black Orange Black Black Black Black Orange
Black Yellow Black Black Black Black Black Black Black Yellow


Example 2
Input:
Orange Gray Gray Orange Gray Gray Orange Gray Gray Orange Red Red
Pink Yellow Gray Pink Yellow Gray Pink Yellow Gray Pink Red Red
Pink Yellow Gray Pink Yellow Gray Pink Yellow Gray Pink Red Red
Orange Gray Gray Orange Gray Gray Orange Gray Gray Orange Red Red

Output:
Orange Black Black Orange Black Black Orange Black Black Orange
Black Black Black Black Black Black Black Black Black Black
Black Black Black Black Black Black Black Black Black Black
Orange Black Black Orange Black Black Orange Black Black Orange


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

Output:
Pink Black Black Black Pink Black Black
Red Black Black Black Black Black Black
Black Black Black Black Black Black Black
Black Red Red Black Black Gray Green


Here is the input grid for the test example:
Input:
Yellow Yellow Yellow Yellow
Red Red Red Red
Red Red Red Red
Purple Purple Purple Purple


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 Yellow Yellow Yellow
```
assistant