node source
node ask#1 "writer" @6:37 actors=actor#1 type="string"
node ask#2 "reviewer" @7:40 actors=actor#2 type="string"
node ask#3 "reviser" @9:38 actors=actor#3 type="string"
node sink
actor actor#1 "writer" @6:21
actor actor#2 "reviewer" @7:22
actor actor#3 "reviser" @9:21
edge source -> ask#1 data exact
edge ask#1 -> ask#2 data exact type="string"
edge ask#2 -> ask#3 data exact type="string"
edge ask#3 -> sink data exact type="string"
