lane actor#1 "scan" @3:21
lane actor#2 "fix" @8:8
region seq#1 seq
step ask#1 ask "scan" @3:35 lane=actor#1 region=seq#1 always
step ask#2 ask "fix" @8:21 lane=actor#2 region=seq#1 always
edge ask#1 -> ask#2 data always exact
sink ask#2
