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
Yellow
Blue
Green
Black
Green

Output:
Black
Black
Black
Black
Black
Black
Black
Black
Black
Yellow
Blue
Green
Black
Green


Example 2
Input:
Black
Green
Yellow
Red
Yellow

Output:
Black
Black
Black
Black
Black
Black
Black
Black
Black
Green
Yellow
Red
Yellow


Example 3
Input:
Gray
Red
Yellow
Yellow
Green

Output:
Black
Black
Black
Black
Black
Black
Black
Black
Gray
Red
Yellow
Yellow
Green


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

```
Black
Black
Black
Black
Black
Black
Black
Black
Gray
Black
Black
Gray
Blue
Gray
Green
```
assistant