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:
Green Green Yellow Yellow
Green Green Yellow Yellow
Blue Blue Red Red
Blue Blue Red Red

Output:
Blue Green Black Black
Red Yellow Black Black
Black Black Black Black
Black Black Black Black


Example 2
Input:
Blue Blue Green Green
Blue Blue Green Green
Red Red Yellow Yellow
Red Red Yellow Yellow

Output:
Red Blue Black Black
Yellow Green Black Black
Black Black Black Black
Black Black Black Black


Example 3
Input:
Blue Blue Yellow Yellow
Blue Blue Yellow Yellow
Red Red Green Green
Red Red Green Green

Output:
Red Blue Black Black
Green Yellow Black Black
Black Black Black Black
Black Black Black Black


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


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 Red Black Black
Blue Green Black Black
Black Black Black Black
Black Black Black Black
```
assistant