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<Interpret> The player is at row 6, column 5, and the goal is at row 1, column 4. There are 9 holes. They are at: row 1, column 3; row 1, column 6; row 2, column 1; row 2, column 6; row 3, column 3; row 5, column 1; row 5, column 4; row 5, column 5; row 6, column 6. <Action Plan> - Moving Left (L). The player is now at row 6, column 4. This grid is safe. - Moving Up (U). The player is now at row 5, column 4. This grid contains a hole! Revert this step - the player is still at row 6, column 4. - Replan: Moving Left (L). The player is now at row 6, column 3. This grid is safe. - Moving Up (U). The player is now at row 5, column 3. This grid is safe. - Moving Up (U). The player is now at row 4, column 3. This grid is safe. - Moving Right (R). The player is now at row 4, column 4. This grid is safe. - Moving Up (U). The player is now at row 3, column 4. This grid is safe. - Moving Up (U). The player is now at row 2, column 4. This grid is safe. - Moving Up (U). The player is now at row 1, column 4. This grid is the goal, so we stop here. <Verification> 1. Left to row 6, column 4 (safe) 2. Left to row 6, column 3 (safe) 3. Up to row 5, column 3 (safe) 4. Up to row 4, column 3 (safe) 5. Right to row 4, column 4 (safe) 6. Up to row 3, column 4 (safe) 7. Up to row 2, column 4 (safe) 8. Up to row 1, column 4 (goal) <Output> Action plan: L,L,U,U,R,U,U,U |