Current State ID: 1
Current State Description: Block 'a' is held by the hand and is no longer on block 'd'. Block 'd' is now clear. Block 'b' is supporting block 'd'. Block 'c' is supporting block 'b'. The table supports block 'c'. The hand is not empty as it holds block 'a'.

Child State ID: 4
Action Taken: put-down(block_a)
State Description: Block 'a' is now on the table and clear. The hand is empty. Block 'd' remains clear and on block 'b'. Block 'b' is supporting block 'd' and on block 'c'. Block 'c' is on the table, supporting block 'b'.

