Current State ID: 28
Current State Description: Block `a` is on the table and clear. Block `b` is on the table and clear. Block `c` is in the hand and not clear. Block `d` is on the table and clear. The hand is holding block `c`.

Child State ID: 37
Action Taken: put-down(c)
State Description: Block `a` is on the table and clear. Block `b` is on the table and clear. Block `c` is on the table and clear. Block `d` is on the table and clear. The hand is empty.

Child State ID: 38
Action Taken: stack(c, b)
State Description: Block `a` is on the table and clear. Block `b` is on the table with block `c` on top, making `b` not clear. Block `c` is on block `b` and is clear, since nothing is on top of it. Block `d` is on the table and clear. The hand is empty.

