lane actor#1 "seed" @12:20
lane actor#2 "out" @15:19
region seq#1 seq
step ask#1 ask "seed" @12:34 lane=actor#1 region=seq#1 always
step ask#2 ask "out" @15:32 lane=actor#2 region=seq#1 always
edge ask#1 -> ask#2 data always inexact
sink ask#2
