node source
node ask#1 "a" @7:22 actors=actor#1 type="string"
node ask#2 "ask" @9:34 actors=actor#1,actor#2 type="string"
node sink
actor actor#1 "alpha" @5:11
actor actor#2 "beta" @6:11
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"
