There are 5 shapes on a 10x10 grid. Which shape is closest to the green rectangle in terms of Manhattan distance? The final answer is the grid position of the closest shape like (row_index, column_index).
<think>Target shape: green rectangle at (3, 9)
Distance from target shape to yellow square at (1, 2): 9
Distance from target shape to gray trapezoid at (6, 0): 12
Distance from target shape to orange rectangle at (0, 2): 10
Distance from target shape to cyan right_triangle at (4, 4): 6
Closest shape is the cyan right_triangle at (4, 4) with distance 6</think>

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