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:
Pink
Pink
Brown
Purple

Output:
Pink
Pink
Brown
Purple
Black


Example 2
Input:
Black
Blue
Red

Output:
Blue
Red
Black
Black
Black


Example 3
Input:
Brown
Red
Black

Output:
Brown
Red
Black
Black
Black


Here is the input grid for the test example:
Input:
Yellow
Purple
Green
Purple
Pink
Black
Black
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
Purple
Green
Purple
Pink
```
assistant