Question: What is the Caverphone for Nelson which is the family name of George R. Nelson?
Choices:
AKST11
R11111
TFS111
P11111
KR1111
LN1111
ARR111
KLT111
LR1111
NSN111
Answer: NSN111
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:name> "Nelson" . ?e_1 <family_name> ?e . ?e_1 <pred:name> "George R. Nelson" .  ?e <Caverphone> ?pv .  }
Program:
function: Find
inputs: George R. Nelson
function: Relate
dependencies: 0
inputs: family name
forward
function: Find
inputs: Nelson
function: And
dependencies: 1
2
function: QueryAttr
dependencies: 3
inputs: Caverphone