Question: Is Frederick Dewayne Hubbard the birth name of the person who plays the flugelhorn?
Choices: yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
SPARQL: ASK { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e <instrument> ?e_1 . ?e_1 <pred:name> "flugelhorn" .  ?e <birth_name> ?pv . ?pv <pred:value> "Frederick Dewayne Hubbard" .  }
Program:
function: Find
inputs: flugelhorn
function: Relate
dependencies: 0
inputs: instrument
backward
function: FilterConcept
dependencies: 1
inputs: human
function: QueryAttr
dependencies: 2
inputs: birth name
function: VerifyStr
dependencies: 3
inputs: Frederick Dewayne Hubbard
Answer: yes