There are 2 shapes on a 9x9 grid. Which shape is closest to the yellow 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: yellow right_triangle at (0, 8)
Distance from target shape to cyan trapezoid at (4, 3): 9
Closest shape is the cyan trapezoid at (4, 3) with distance 9</think>

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