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:
Purple Blue Black Black Black Black
Purple Purple Purple Purple Yellow Gray
Black Black Black Black Black Gray
Black Black Black Black Gray Gray
Pink Black Black Black Black Red

Output:
Pink Black Black Pink Pink
Black Black Black Pink Pink
Black Black Black Pink Black
Black Black Black Pink Black
Black Pink Black Pink Black
Pink Pink Pink Pink Black


Example 2
Input:
Black Black Red Red Red
Black Black Red Blue Black
Black Black Brown Brown Black
Black Blue Purple Orange Green
Blue Pink Purple Green Black
Blue Yellow Yellow Black Black

Output:
Blue Blue Black Black Black Black
Blue Blue Blue Black Black Black
Blue Blue Blue Blue Blue Blue
Black Blue Blue Blue Blue Blue
Black Black Blue Black Black Blue


Example 3
Input:
Yellow Yellow Black Black Black Black
Yellow Yellow Black Black Black Black
Blue Yellow Black Black Black Black
Purple Purple Pink Black Blue Blue
Black Purple Pink Gray Blue Red
Gray Black Pink Pink Black Black

Output:
Gray Black Gray Gray Gray Gray
Black Gray Gray Gray Gray Gray
Gray Gray Gray Black Black Black
Gray Gray Black Black Black Black
Black Gray Gray Black Black Black
Black Gray Gray Black Black Black


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