| 1 |
1of(2of(M(source(l)))) a:Knd fp-> Top
 | 1 step |
| 2 |
10. rcv(l; tg) dom(1of(2of(M(source(l)))))
1of(2of(M(source(l))))(rcv(l; tg)) r M(destination(l)).din(l,tg)
 | 15 steps |
| 3 |
10.  rcv(l; tg) dom(1of(2of(M(source(l)))))
Void r M(destination(l)).din(l,tg)
 | 1 step |