Parent State ID: 50
State Depth: 8
Action Taken: stack(block_b, block_d)
Action Reasoning: To progress toward the goal state, I will place block B on block D, as this action starts building the required stack structure.
State Description: Block A is on the table and clear. Block B is on block D and clear. Block C is on the table and clear. Block D is on the table and supporting block B. The hand is empty.
Action Path: ['unstack(block_b, block_c)', 'stack(block_b, block_d)', 'unstack(block_b, block_d)', 'stack(block_b, block_d)', 'unstack(block_b, block_d)', 'stack(block_b, block_c)', 'unstack(block_b, block_c)', 'stack(block_b, block_d)']

INACTIVE REASON: deactivated because diagram generation failed or invalid action chosen: 
