There are 4 shapes on a 5x5 grid. Which shape is closest to the blue 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: blue trapezoid at (2, 1)
Distance from target shape to orange right_triangle at (1, 1): 1
Distance from target shape to yellow right_triangle at (0, 0): 3
Distance from target shape to pink right_triangle at (3, 3): 3
Closest shape is the orange right_triangle at (1, 1) with distance 1</think>

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