node source
node ask#1 "ask" @5:31 actors=actor#1 type="string"
node ask#2 "ask" @7:30 actors=actor#1,actor#2 type="string"
node sink
actor actor#1 "worker-a" @4:17
actor actor#2 "worker-b" @4:36
edge source -> ask#1 data exact
edge ask#1 -> ask#2 context inexact
edge ask#1 -> ask#2 data exact type="string"
edge ask#2 -> sink data exact type="string"
