There are 6 shapes on a 9x9 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 (6, 2)
Distance from target shape to brown square at (4, 6): 6
Distance from target shape to orange square at (5, 4): 3
Distance from target shape to cyan square at (8, 1): 3
Distance from target shape to green rectangle at (5, 5): 4
Distance from target shape to yellow rectangle at (7, 2): 1
Closest shape is the yellow rectangle at (7, 2) with distance 1</think>

<answer>(7, 2)</answer>