lane actor#1 "digger" @7:28 families=loop#1
lane actor#2 "seeder" @11:17
region seq#1 seq
region loop#1 loop parent=seq#1 @6:1 label="dig"
region branch#1 branch parent=loop#1 @7:15
step ask#1 ask "digger" @7:44 lane=actor#1 region=branch#1 maybe serial
step ask#2 ask "seeder" @11:33 lane=actor#2 region=seq#1 always
edge ask#2 -> ask#1 data maybe exact
edge ask#1 -> ask#1 carry maybe
sink ask#1
