Parent State ID: 24
State Depth: 8
Action Taken: stack(b, a)
Action Reasoning: The goal is to stack block 'b' on block 'a', which is currently clear. This action moves us closer to the goal state by placing 'b' in the correct position.
State Description: The hand is now empty. Block 'b' is on block 'a' and is clear. Block 'a' is not clear. Block 'c' remains under block 'a' and is not clear. Block 'd' is on the table and clear.
Action Path: ['unstack(c, d)', 'put-down(c)', 'unstack(d, a)', 'put-down(d)', 'pick-up(a)', 'stack(a, c)', 'pick-up(b)', 'stack(b, a)']
