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

Output:
Yellow
Green


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

Output:
Blue


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

Output:
Yellow


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

```
Green Red
Yellow Blue
```
assistant