Parent State ID: 0
State Depth: 1
Action Taken: unstack(block_b, block_c)
Action Reasoning: To start building the desired stack, block C should be on the table with no blocks on top of it. Since block B is currently on C, the immediate move should be to unstack block B from block C.
State Description: Block A is on the table and clear. Block B is in the hand and no longer clear. Block C is on the table and now clear. Block D is on the table and clear. The hand is holding block B.
Action Path: ['unstack(block_b, block_c)']

successfully verified the action of new state 3 with the path: The action `unstack(block_b, block_c)` is valid as all preconditions are met, and the effects match the current state's description. The visualization accurately reflects the state after the action, with all objects correctly represented.
