Parent State ID: 1
State Depth: 2
Action Taken: put-down(b)
Action Reasoning: To achieve the goal state, we need Block B on the table so that Block C can be stacked on it. The best action is to put down Block B.
State Description: Block c is clear and on the table. Block b is on the table and clear. Block a is on the table and is clear. Block d is on the table and is clear. The hand is empty.
Action Path: ['unstack(b, c)', 'put-down(b)']
