Current State ID: 14
Current State Description: Block 'a' is on the table and clear. Block 'c' is clear and on top of block 'b'. Block 'b' is on the table. Block 'd' is held in the hand. The hand is not empty.

Child State ID: 17
Action Taken: stack(d, c)
State Description: Block 'a' is on the table and clear. Block 'c' is on top of block 'b' and is now supporting block 'd'. Block 'b' is on the table. Block 'd' is on top of block 'c' and is clear. The hand is empty.

Child State ID: 18
Action Taken: put-down(d)
State Description: Block 'a' is on the table and clear. Block 'c' is clear and on top of block 'b'. Block 'b' is on the table. Block 'd' is on the table and clear. The hand is empty.

