devops/perl/lib/Graph-Easy-0.76/t/out/4_minlen.txt

+---------+          +---------+          +---------+
| Potsdam | <------- | Berlin  | -------> | Cottbus |
+---------+          +---------+          +---------+
                       |
                       |
                       |
                       |
                       |
                       v
                     +---------+
                     | Leipzig |
                     +---------+