Parent State ID: 28
State Depth: 8
Action Taken: put-down(c)
Action Reasoning: We need to free the hand and make block `c` clear by putting it down on the table. This allows us to start stacking the blocks in the goal configuration.
State Description: Block `a` is on the table and clear. Block `b` is on the table and clear. Block `c` is on the table and clear. Block `d` is on the table and clear. The hand is empty.
Action Path: ['unstack(d, a)', 'put-down(d)', 'unstack(a, c)', 'put-down(a)', 'unstack(c, b)', 'stack(c, b)', 'unstack(c, b)', 'put-down(c)']

INACTIVE REASON: action path invalid: The last action and the current state's description and visualization are valid based on the sequence of actions. However, the sequence of actions does not progress towards the goal state, as the current configuration of blocks does not match the goal configuration.
