There are 6 shapes on a 4x4 grid. Which shape is closest to the pink 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: pink trapezoid at (1, 0)
Distance from target shape to cyan right_triangle at (2, 0): 1
Distance from target shape to brown rectangle at (1, 1): 1
Distance from target shape to green square at (2, 1): 2
Distance from target shape to red square at (0, 0): 1
Distance from target shape to yellow right_triangle at (1, 2): 2
Closest shape is the cyan right_triangle at (2, 0) with distance 1</think>

<answer>(2, 0)</answer>