node source
node join#1 "join" @9:30 type="[string, string]"
node ask#1 "first" @10:18 actors=actor#1 type="string"
node ask#2 "second" @11:19 actors=actor#2 type="string"
node ask#3 "third" @13:32 actors=actor#3 type="string"
node sink
actor actor#1 "first" @10:3
actor actor#2 "second" @11:3
actor actor#3 "third" @13:17
edge source -> ask#1 data exact
edge source -> ask#2 data exact
edge join#1 -> ask#3 data exact port=0 type="string"
edge join#1 -> sink data exact port=1 type="string"
edge ask#1 -> join#1 data exact port=0 type="string"
edge ask#1 -> ask#3 data exact type="string"
edge ask#2 -> join#1 data exact port=1 type="string"
edge ask#2 -> sink data exact type="string"
edge ask#3 -> sink data exact type="string"
