What letters are not in supercalifragilisticexpialidocious?

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Tags

1. #initial
2. #poppins
3. #english
4. #supercalifragilisticexpialidocious
5. #longest
6. #pneumonoultramicroscopicsilicovolcanoconiosis
7. #movie
8. #although
9. #findings
10. #believe
11. #letters
12. #people