There are 4 shapes on a 5x5 grid. Which shape is closest to the cyan right_triangle in terms of Manhattan distance? The final answer is the grid position of the closest shape like (row_index, column_index).
<think>Target shape: cyan right_triangle at (0, 2)
Distance from target shape to purple rectangle at (1, 4): 3
Distance from target shape to brown rectangle at (0, 0): 2
Distance from target shape to pink rectangle at (1, 3): 2
Closest shape is the brown rectangle at (0, 0) with distance 2</think>

<answer>(0, 0)</answer>