There are 5 shapes on a 6x6 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 (4, 0)
Distance from target shape to blue rectangle at (2, 3): 5
Distance from target shape to cyan rectangle at (3, 1): 2
Distance from target shape to brown square at (1, 4): 7
Distance from target shape to orange trapezoid at (3, 2): 3
Closest shape is the cyan rectangle at (3, 1) with distance 2</think>

<answer>(3, 1)</answer>