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:
Green Green Green Yellow Green Black Green Green Green
Green Green Green Black Black Black Green Green Green
Green Green Green Yellow Yellow Yellow Green Green Green
Green Green Green Yellow Yellow Yellow Black Yellow Black
Green Green Green Yellow Yellow Yellow Black Black Black
Green Green Green Black Yellow Yellow Yellow Black Black
Green Green Green Black Yellow Yellow Yellow Black Green
Green Green Green Black Yellow Yellow Yellow Black Yellow
Green Green Green Black Black Black Black Black Black

Output:
Yellow
Yellow
Black
Black


Example 2
Input:
Black Black Black Black Black Green Black Black Black
Green Green Green Yellow Yellow Yellow Black Black Black
Green Green Green Yellow Yellow Yellow Black Black Black
Green Green Green Yellow Yellow Yellow Green Green Green
Black Yellow Yellow Yellow Black Black Green Green Green
Black Yellow Yellow Yellow Black Black Green Green Green
Black Yellow Yellow Yellow Black Yellow Yellow Yellow Yellow
Yellow Green Black Black Black Yellow Yellow Yellow Black
Black Black Black Black Black Yellow Yellow Yellow Black

Output:
Yellow
Yellow
Yellow
Black


Example 3
Input:
Black Black Black Black Black Black Black Black Black
Yellow Black Black Black Black Black Green Green Green
Black Black Black Black Black Black Green Green Green
Black Black Black Black Black Black Green Green Green
Black Green Black Black Black Black Black Black Black
Yellow Yellow Yellow Black Black Black Black Black Black
Yellow Yellow Yellow Black Black Black Black Black Black
Yellow Yellow Yellow Black Black Black Black Black Black
Black Black Black Black Black Black Black Black Black

Output:
Yellow
Black
Black
Black


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