There are 5 shapes on a 7x7 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 (4, 2)
Distance from target shape to orange rectangle at (4, 3): 1
Distance from target shape to blue trapezoid at (1, 6): 7
Distance from target shape to red square at (2, 0): 4
Distance from target shape to cyan right_triangle at (3, 6): 5
Closest shape is the orange rectangle at (4, 3) with distance 1</think>

<answer>(4, 3)</answer>