Why does Graham Bell say hello?

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Tags

1. #graham
2. #longer
3. #edison
4. #least
5. #urged
6. #people
7. #alexander
8. #thought
9. #thomas
10. #answering
11. #phone
12. #usage
13. #around
14. #years
15. #common
16. #rival
17. #dictionary
18. #turns
19. #hello
20. #better