1. 定規   ruler   school   student   blackboard   Hint Half-n-half Clue   2. 鉛筆   satchel   school   pencil   teacher   Half-n-half Clue   3. 消しゴム   teacher   book   eraser   ruler   Half-n-half Clue   4. 等級   grade   teacher   eraser   ruler   Half-n-half Clue   5. 椅子   chair   eraser   paper   blackboard   Half-n-half Clue   6. 図書館   ruler   blackboard   pencil   library   Half-n-half Clue   7. 紙   paper   library   eraser   school   Half-n-half Clue