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

Output:
Yellow Yellow Blue Blue
Yellow Yellow Blue Blue
Blue Blue Yellow Yellow
Blue Blue Yellow Yellow


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

Output:
Yellow Yellow Blue Blue
Yellow Yellow Blue Blue
Blue Blue Yellow Yellow
Blue Blue Yellow Yellow


Example 3
Input:
Blue Blue Red Red
Blue Blue Red Red
Brown Brown Yellow Yellow
Brown Brown Yellow Yellow

Output:
Yellow Yellow Blue Blue
Yellow Yellow Blue Blue
Blue Blue Yellow Yellow
Blue Blue Yellow Yellow


Here is the input grid for the test example:
Input:
Brown Brown Brown Brown
Brown Brown Brown Brown
Brown Brown Green Green
Brown Brown Green 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 Yellow Blue Blue
Yellow Yellow Blue Blue
Blue Blue Yellow Yellow
Blue Blue Yellow Yellow
```
assistant