I believe the answer is that they separate syllables.
I hope this helps.
Diversity strengthens a community because everyone in it can learn something. For an example, each culture is taught and brought up a different way. The things they've learned may be different from the things that you were taught. Diversity can teach you to appreciate other cultures and how deal with new experiences when you go to different places. When a community can be accepting and understanding it actually makes the community better.
This is your answer:
Braille
Braille is something that blind people feel with their hands and from the certain textures they can interpret that into what it reads. It is basically a way to make reading for the blind possible!
Hope this helps!
