+--------------+ | |
| Organization | | |
+------+-------+ | |
| | |
+----------+-----+----+----------+ | |
| | | | | |
+---+---+ +---+---+ +---+---+ +---+---+ | |
| d1 | | d2 | | d3 | | d4 | | |
+---+---+ +---+---+ +---+---+ +---+---+ | |
| | | | | |
+---+---+ +---+---+ +---+---+ +---+---+ | |
| | | | | | | | | |
+---+---+ +---+---+ +---+---+ +---+---+ | |
| | | | | |
+---+---+ +---+---+ +---+---+ +---+---+ | |
| | | | | | | | | |
+---+---+ +---+---+ +---+---+ +---+---+ | |
| | | | | |
+---+---+ +---+---+ +---+---+ +---+---+ | |
| | | | | | | | | |
+---+---+ +---+---+ +---+---+ +---+---+ | |