There are 5 shapes on a 4x4 grid. Which shape is closest to the cyan 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: cyan trapezoid at (0, 0)
Distance from target shape to orange rectangle at (2, 3): 5
Distance from target shape to yellow rectangle at (2, 1): 3
Distance from target shape to red square at (2, 2): 4
Distance from target shape to pink rectangle at (0, 3): 3
Closest shape is the yellow rectangle at (2, 1) with distance 3</think>

<answer>(2, 1)</answer>