There are 4 shapes on a 10x10 grid. Which shape is closest to the pink right_triangle 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 right_triangle at (4, 4)
Distance from target shape to yellow square at (7, 8): 7
Distance from target shape to orange trapezoid at (7, 0): 7
Distance from target shape to brown square at (2, 5): 3
Closest shape is the brown square at (2, 5) with distance 3</think>

<answer>(2, 5)</answer>