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

Output:
Yellow


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

Output:
Yellow


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

Output:
Yellow


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

```
Yellow
```
assistant