node source
node ask#1 "seed" @12:34 actors=actor#1 type="string"
node ask#2 "out" @15:32 actors=actor#2 type="string"
node sink
actor actor#1 "seed" @12:20
actor actor#2 "out" @15:19
edge source -> ask#1 data exact
edge ask#1 -> ask#2 data inexact type="string"
edge ask#2 -> sink data exact type="string"
