16. _How many do the Combinations represent?_
Seven.

17. _How many do the Diphthongs represent?_
Only one, as oi and oy only repeat sounds already represented by a
and i.

18. _How many sounds has A?_
Five.

19. _What are they?_
Long, Short, Medial, Flat, and Broad.

20. _How many sounds has E?_
Two.

21. _What are they?_
Long and Short.

22. _How many sounds has I?_
Two.

23. _What are they?_
Long and Short.

24. _How many sounds has O?_
Three.

25. _What are they?_