There are 6 shapes on a 5x5 grid. Which shape is closest to the brown trapezoid in terms of Manhattan distance? The final answer is the grid position of the closest shape like (row_index, column_index).
<think>Target shape: brown trapezoid at (2, 0)
Distance from target shape to blue rectangle at (3, 1): 2
Distance from target shape to green right_triangle at (2, 4): 4
Distance from target shape to yellow right_triangle at (2, 1): 1
Distance from target shape to cyan right_triangle at (0, 3): 5
Distance from target shape to red square at (2, 2): 2
Closest shape is the yellow right_triangle at (2, 1) with distance 1</think>

<answer>(2, 1)</answer>