lane actor#1 "judge" @5:15
lane actor#2 "t" @9:15
region seq#1 seq
step ask#1 ask "judge" @7:24 lane=actor#1 region=seq#1 always
step ask#2 ask "t" @9:26 lane=actor#2 region=seq#1 always
edge ask#1 -> ask#2 seq always
edge ask#2 -> ask#1 data always exact
sink ask#1
