node source
node ask#1 "s" @4:28 actors=actor#2 type="string"
node ask#2 "worker" @7:19 actors=actor#1 type="string"
node sink
actor actor#1 "worker" @3:16
actor actor#2 "s" @4:17
edge source -> ask#1 data exact
edge ask#1 -> ask#2 data exact type="string"
edge ask#2 -> sink data exact type="string"
