#expect 9
#expect 8
#expect 8
#ship debug        : Debug
#ship fifo         : Fifo

fifo.in: literal 9; deliver;
fifo.in: literal 8; deliver;
fifo.in: literal 7; deliver;
fifo.out: [*] take, sendto debug.in;

debug.in: 
  clog;
  take, requeue 2 times;
  deliver, requeue 3 times;
  unclog;