There are 6 shapes on a 6x6 grid. Which shape is closest to the gray 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: gray trapezoid at (0, 1)
Distance from target shape to blue square at (0, 3): 2
Distance from target shape to yellow trapezoid at (0, 2): 1
Distance from target shape to red square at (1, 4): 4
Distance from target shape to green rectangle at (3, 0): 4
Distance from target shape to pink right_triangle at (0, 0): 1
Closest shape is the yellow trapezoid at (0, 2) with distance 1</think>

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