Parent State ID: 7
State Depth: 5
Action Taken: unstack(c, b)
Action Reasoning: The goal state requires block `d` to be on top of block `b`. Since block `d` is clear and block `b` is supporting block `c`, the next logical step is to unstack `c` from `b` to make `b` clear and ready for `d`.
State Description: Block `a` is on the table and clear. Block `b` is on the table and clear. Block `c` is in the hand and no longer on block `b`. Block `d` is on the table and clear. The hand is holding block `c`.
Action Path: ['unstack(d, a)', 'put-down(d)', 'unstack(a, c)', 'put-down(a)', 'unstack(c, b)']

successfully verified the action of new state 10 with the path: The last action, `unstack(c, b)`, is valid as all preconditions are met, and the effects match the current state description. The visualization accurately reflects the state, with all objects correctly positioned and status indicated. The sequence of actions logically progresses towards the goal state.
