lane actor#1 "critic" @11:20 families=fanout#1
lane actor#2 "final" @17:8
region seq#1 seq
region fanout#1 fanout parent=seq#1 @10:3 label="map"
step ask#1 ask "critic" @12:35 lane=actor#1 region=fanout#1 maybe serial
step ask#2 ask "final" @17:23 lane=actor#2 region=seq#1 always
edge ask#1 -> ask#1 carry maybe
edge ask#1 -> ask#2 data maybe exact
sink ask#2
