There are 6 shapes on a 8x8 grid. Which shape is closest to the yellow trapezoid 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 trapezoid at (1, 7)
Distance from target shape to brown rectangle at (2, 4): 4
Distance from target shape to orange rectangle at (7, 3): 10
Distance from target shape to red right_triangle at (7, 7): 6
Distance from target shape to cyan right_triangle at (1, 1): 6
Distance from target shape to gray square at (4, 6): 4
Closest shape is the brown rectangle at (2, 4) with distance 4</think>

<answer>(2, 4)</answer>