Parent State ID: 33
State Depth: 7
Action Taken: pick-up(b)
Action Reasoning: To achieve the goal state, we need to stack block 'b' on block 'c'. First, we must pick up block 'b' from the table.
State Description: Block 'a' is on top of block 'd', block 'c' is clear and on the table, and block 'b' is held in the hand. The hand is no longer empty. In the diagram, block 'b' is lifted from the table, and the hand is holding block 'b'.
Action Path: ['unstack(c, b)', 'put-down(c)', 'unstack(d, a)', 'put-down(d)', 'pick-up(a)', 'stack(a, d)', 'pick-up(b)']
