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

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