This document contains a series of letters that are paired together in lines. Each line contains two letters with a return between them. The document shows 26 pairs of letters going from A-Z in order with a return between each pair.

1. A B

2. C D

3. E F

4. G H

5. I J

6. K L

7. M N

8. O P

9. R S

10. T U

11. V X

12. Y Z