Is El Clasico a derby?

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Tags

1. #footballing
2. #barcelona
3. #reasons
4. #these
5. #which
6. #madrid
7. #called
8. #means
9. #political
10. #match
11. #teams
12. #derby
13. #almost
14. #classic
15. #century
16. #since
17. #rivalry
18. #between
19. #rivals