Question: Is the official website of Michael McDonald (the one that has the voice type baritone) http://michaelmcdonald.com/ ?
Choices: yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
SPARQL: ASK { ?e <pred:name> "Michael McDonald" . ?e <voice_type> ?e_1 . ?e_1 <pred:name> "baritone" .  ?e <official_website> ?pv . ?pv <pred:value> "http://michaelmcdonald.com/" .  }
Program:
function: Find
inputs: baritone
function: Relate
dependencies: 0
inputs: voice type
backward
function: Find
inputs: Michael McDonald
function: And
dependencies: 1
2
function: QueryAttr
dependencies: 3
inputs: official website
function: VerifyStr
dependencies: 4
inputs: http://michaelmcdonald.com/
Answer: yes