Current State ID: 50
Current State Description: Block A is on the table and clear. Block B is in the hand and not clear. Block C is on the table and clear. Block D is on the table and clear. The hand is holding block B.

Child State ID: 57
Action Taken: put-down(block_b)
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.

