graph LR
ABC --> BCDEFG
CDEFGH --> DEF
---
+--------+     +--------+
|        |     |        |
|  ABC   |---->| BCDEFG |
|        |     |        |
+--------+     +--------+
                         
                         
                         
                         
                         
+--------+     +--------+
|        |     |        |
| CDEFGH |---->|  DEF   |
|        |     |        |
+--------+     +--------+
