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 Yellow Yellow Yellow
Yellow Purple Purple Yellow
Yellow Purple Purple Yellow
Yellow Yellow Yellow Yellow

Output:
Yellow


Example 2
Input:
Pink Pink Pink Pink Pink
Pink Orange Orange Orange Pink
Pink Orange Yellow Orange Pink
Pink Orange Orange Orange Pink
Pink Pink Pink Pink Pink

Output:
Pink


Example 3
Input:
Orange Orange Orange Orange Orange
Orange Gray Gray Gray Orange
Orange Gray Brown Gray Orange
Orange Gray Gray Gray Orange
Orange Orange Orange Orange Orange

Output:
Orange


Here is the input grid for the test example:
Input:
Gray Gray Gray
Gray Pink Gray
Gray Gray Gray


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:

```
Gray
```
assistant