Now the current block configuration is: - Stack with blue block, yellow block, from bottom to top - Stack with green block, orange block, purple block, from bottom to top The action "move(purple,table)" is valid. We execute this action. Now the current block configuration is: - Stack with blue block, yellow block, from bottom to top - Stack with green block, orange block, from bottom to top - Stack with purple block The action "move(orange,table)" is valid. We execute this action. Now the current block configuration is: - Stack with blue block, yellow block, from bottom to top - Stack with green block - Stack with purple block - Stack with orange block The action "move(green,yellow)" is valid. We execute this action. Yes