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 Black Black Black Brown
Blue Blue Blue Green Pink
Black Black Black Green Black
Black Black Black Green Black

Output:
Gray


Example 2
Input:
Blue Black Black
Blue Black Black
Yellow Blue Blue

Output:
Gray


Example 3
Input:
Black Red Black
Black Red Black
Black Blue Black
Green Purple Black
Red Purple Purple

Output:
Gray


Here is the input grid for the test example:
Input:
Red Red Red
Red Red Red
Red Red Red


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