Current State ID: 23
Current State Description: Block 'c' is now held in the hand, making block 'b' clear and on the table. Block 'a' remains on top of block 'd', and block 'd' is supporting block 'a'. The hand is no longer empty as it holds block 'c'.

Child State ID: 31
Action Taken: stack(c, b)
State Description: Block 'c' is now on top of block 'b', making block 'b' no longer clear. Block 'a' remains on top of block 'd', and block 'd' is supporting block 'a'. The hand is now empty.

Child State ID: 32
Action Taken: put-down(c)
State Description: Block 'c' is now on the table and clear. Block 'b' remains clear and on the table. Block 'a' is on top of block 'd', and block 'd' is supporting block 'a'. The hand is empty.

