Parent State ID: 0
State Depth: 1
Action Taken: unstack(c, b)
Action Reasoning: To achieve the goal state, we need to move block c to the table. The first step is to unstack block c from block b, as this will allow us to place block d on block c later.
State Description: The hand is holding block c. Block a is on the table. Block b is on top of block a and is now clear. Block c is no longer on block b and is not clear. Block d is on the table and clear.
Action Path: ['unstack(c, b)']
