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

Output:
Black Red Black Green
Blue Red Red Blue
Purple Purple Purple Purple
Purple Purple Purple Purple
Black Red Red Red


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

Output:
Yellow Yellow Yellow
Green Blue Black
Black Green Red


Example 3
Input:
Black Black Black
Red Red Red
Black Black Black
Blue Blue Blue
Blue Blue Blue

Output:
Black Black Black
Yellow Yellow Yellow
Black Black Black
Purple Purple Purple
Purple Purple Purple


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


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