markdeep.txt

sudo apt install graph-easy

z.B.:
echo "[ Bonn ] -- car --> [ Berlin ], [ Ulm ]\n[ Berlin ] -- foot --> [ Ulm ]" | graph-easy

<style class="fallback">body{white-space:pre;font-family:monospace}</style><script src="markdeep.min.js"></script><script src="http://casual-effects.com/markdeep/latest/markdeep.min.js"></script>