lane actor#1 "x" @6:17
lane actor#2 "y" @7:17
lane actor#3 "c" @9:17
region seq#1 seq
step ask#1 ask "x" @6:28 lane=actor#1 region=seq#1 always
step ask#2 ask "y" @7:28 lane=actor#2 region=seq#1 always
step ask#3 ask "c" @9:28 lane=actor#3 region=seq#1 always
edge ask#1 -> ask#2 seq always
edge ask#1 -> ask#3 data always exact
edge ask#2 -> ask#3 data always exact
sink ask#3
