+-------------++---+
| A || E |
+-------------++---+
^ ^ ^ ^
| | | |
| | | |
v v v |
+---++---++---+ |
| B || C || D | |
+---++---++---+ |
^ ^ ^ |
+----+----+----+
+-------------++---+
| A || E |
+-------------++---+
^ ^ ^ ^
| | | |
| | | |
v v v |
+---++---++---+ |
| B || C || D | |
+---++---++---+ |
^ ^ ^ |
+----+----+----+