There are 6 shapes on a 5x5 grid. Which shape is closest to the pink 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: pink trapezoid at (2, 3)
Distance from target shape to cyan right_triangle at (3, 0): 4
Distance from target shape to brown square at (1, 0): 4
Distance from target shape to green square at (3, 1): 3
Distance from target shape to purple right_triangle at (1, 4): 2
Distance from target shape to gray square at (3, 4): 2
Closest shape is the purple right_triangle at (1, 4) with distance 2</think>

<answer>(1, 4)</answer>