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

<answer>(5, 4)</answer>