lane actor#1 "triage" @3:22
lane actor#2 "senior" @5:24
region seq#1 seq
region branch#1 branch parent=seq#1 @4:22
step ask#1 ask "triage" @3:38 lane=actor#1 region=seq#1 always
step ask#2 ask "senior" @5:40 lane=actor#2 region=branch#1 maybe
edge ask#1 -> ask#2 control maybe
sink ask#2
