12. Relationships in a File System … is Container of directory directory File System Metaphor
13. Relationships in a File System … is Container of directory directory directory … is Container of File System Metaphor
14. Relationships in a File System … is Container of file directory directory directory … is Container of … is Container of File System Metaphor
15. Relationships in a File System … is Container of file directory directory directory … is Container of … is Container of File System Metaphor has Container
16. Relationships in a File System … is Container of file directory directory directory … is Container of … is Container of File System Metaphor has Container has Container
17. Relationships in a File System … is Container of file directory directory directory … is Container of … is Container of File System Metaphor has Container has Container has Container
25. Relationships in a Linked Database … is Friend of Person Person File System Metaphor
26. Relationships in a Linked Database … is Friend of Web Page Person Person … is Creator of File System Metaphor
27. Relationships in a Linked Database … is Friend of Discussion Post Web Page Person Person … is Creator of … is Topic of File System Metaphor
28. Relationships in a Linked Database … is Friend of Discussion Post Web Page Person Person … is Creator of … is Topic of File System Metaphor has Topic
29. Relationships in a Linked Database … is Friend of Discussion Post Web Page Person Person … is Creator of … is Topic of File System Metaphor has Topic has Creator
30. Relationships in a Linked Database … is Friend of Discussion Post Web Page Person Person … is Creator of … is Topic of File System Metaphor has Topic has Creator has Friend