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SHLOMIF / Graph-Easy-0.76 / t / out / 6_autosplit_class.txt 
+---+     +--------+----+---+
| 1 | --> |   D    |  B | C |
+---+     +--------+----+---+
            ^
            |
            |
          +---+     +---+
          | 2 | --> | 3 |
          +---+     +---+