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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