There are 4 shapes on a 6x6 grid. Which shape is closest to the yellow 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: yellow rectangle at (2, 3)
Distance from target shape to orange right_triangle at (2, 0): 3
Distance from target shape to pink trapezoid at (5, 3): 3
Distance from target shape to cyan trapezoid at (4, 4): 3
Closest shape is the orange right_triangle at (2, 0) with distance 3</think>

<answer>(2, 0)</answer>