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 Purple Black Black
Purple Purple Black Black
Orange Orange Black Black
Orange Orange Black Black
Pink Pink Black Black
Pink Pink Black Black
Yellow Yellow Black Black
Yellow Yellow Black Black
Pink Pink Black Black
Pink Pink Black Black
Brown Brown Black Black
Brown Brown Black Black

Output:
Purple Purple Brown Brown
Purple Purple Brown Brown
Orange Orange Pink Pink
Orange Orange Pink Pink
Pink Pink Yellow Yellow
Pink Pink Yellow Yellow
Yellow Yellow Pink Pink
Yellow Yellow Pink Pink
Pink Pink Orange Orange
Pink Pink Orange Orange
Brown Brown Purple Purple
Brown Brown Purple Purple


Example 2
Input:
Pink Pink Black Black
Pink Pink Black Black
Orange Orange Black Black
Orange Orange Black Black
Yellow Yellow Black Black
Yellow Yellow Black Black
Blue Blue Black Black
Blue Blue Black Black
Red Red Black Black
Red Red Black Black

Output:
Pink Pink Red Red
Pink Pink Red Red
Orange Orange Blue Blue
Orange Orange Blue Blue
Yellow Yellow Yellow Yellow
Yellow Yellow Yellow Yellow
Blue Blue Orange Orange
Blue Blue Orange Orange
Red Red Pink Pink
Red Red Pink Pink


Example 3
Input:
Orange Orange Black Black
Orange Orange Black Black
Gray Gray Black Black
Gray Gray Black Black
Brown Brown Black Black
Brown Brown Black Black
Yellow Yellow Black Black
Yellow Yellow Black Black
Yellow Yellow Black Black
Yellow Yellow Black Black

Output:
Orange Orange Yellow Yellow
Orange Orange Yellow Yellow
Gray Gray Yellow Yellow
Gray Gray Yellow Yellow
Brown Brown Brown Brown
Brown Brown Brown Brown
Yellow Yellow Gray Gray
Yellow Yellow Gray Gray
Yellow Yellow Orange Orange
Yellow Yellow Orange Orange


Here is the input grid for the test example:
Input:
Gray Gray Black Black
Gray Gray Black Black
Pink Pink Black Black
Pink Pink Black Black
Gray Gray Black Black
Gray Gray Black Black
Green Green Black Black
Green Green Black Black
Pink Pink Black Black
Pink Pink Black Black
Brown Brown Black Black
Brown Brown Black Black
Gray Gray Black Black
Gray Gray 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:

```
Gray Gray Gray Gray
Gray Gray Gray Gray
Pink Pink Brown Brown
Pink Pink Brown Brown
Gray Gray Pink Pink
Gray Gray Pink Pink
Green Green Green Green
Green Green Green Green
Pink Pink Gray Gray
Pink Pink Gray Gray
Brown Brown Pink Pink
Brown Brown Pink Pink
Gray Gray Gray Gray
Gray Gray Gray Gray
```
assistant