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(purple,green)" is invalid and cannot be executed, because the green block is below the orange block and is not a valid destination. The action sequence is therefore invalid, so we stop analyzing here.

No