Parent State ID: 41
State Depth: 8
Action Taken: stack(b, c)
Action Reasoning: To achieve the goal state, block 'b' needs to be placed on block 'c', which is clear and on the table. Thus, stacking 'b' on 'c' directly moves us closer to the goal.
State Description: Block 'a' is on top of block 'd', both are on the table. Block 'c' has block 'b' stacked on top of it, making block 'b' not clear. The hand is now empty.
Action Path: ['unstack(c, b)', 'put-down(c)', 'unstack(d, a)', 'put-down(d)', 'pick-up(a)', 'stack(a, d)', 'pick-up(b)', 'stack(b, c)']
