lane actor#1 "triage" @7:17
lane actor#2 "senior" @10:16
region seq#1 seq
region branch#1 branch parent=seq#1 @9:9
step ask#1 ask "triage" @7:33 lane=actor#1 region=seq#1 always
step ask#2 ask "senior" @10:32 lane=actor#2 region=branch#1 maybe
edge ask#1 -> ask#2 control maybe
sink ask#2
