Current State ID: 1
Current State Description: Block c is clear and on the table. Block b is held in the hand and is no longer on Block c. Block a is on the table and is clear. Block d is on the table and is clear. The hand is holding Block b.

Child State ID: 2
Action Taken: put-down(b)
State Description: Block c is clear and on the table. Block b is on the table and clear. Block a is on the table and is clear. Block d is on the table and is clear. The hand is empty.

