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:
Red Red Blue Red Blue
Red Red Blue Red Black
Blue Red Blue Blue Red
Blue Blue Blue Blue Red
Black Red Blue Red Black

Output:
Yellow


Example 2
Input:
Red Black Black Red Blue
Red Red Red Blue Blue
Black Blue Blue Black Blue
Blue Blue Blue Blue Red
Red Blue Red Black Blue

Output:
Yellow


Example 3
Input:
Black Blue Red Blue Blue
Black Red Black Blue Red
Red Red Black Red Blue
Blue Blue Blue Red Black
Blue Black Black Blue Red

Output:
Gray


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


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