Parent State ID: 16
State Depth: 6
Action Taken: stack(a, c)
Action Reasoning: To achieve the goal state, we need to build a stack starting with block 'c' on the table. Since the hand is currently holding block 'a', the best action is to stack 'a' on block 'c', which is clear and on the table.
State Description: The hand is empty. Block 'a' is on block 'c', making block 'a' not clear. Blocks 'b' and 'd' remain on the table and clear. Block 'c' is no longer clear as it supports block 'a'.
Action Path: ['unstack(c, d)', 'put-down(c)', 'unstack(d, a)', 'put-down(d)', 'pick-up(a)', 'stack(a, c)']
