Question: Is PE the Library of Congress Classification for the art whose Dewey Decimal Classification is 820?
Choices: yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
SPARQL: ASK { ?e <pred:instance_of> ?c . ?c <pred:name> "art" . ?e <Dewey_Decimal_Classification> ?pv_1 . ?pv_1 <pred:value> "820" . ?e <Library_of_Congress_Classification> ?pv . ?pv <pred:value> "PE" .  }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: Dewey Decimal Classification
820
function: FilterConcept
dependencies: 1
inputs: art
function: QueryAttr
dependencies: 2
inputs: Library of Congress Classification
function: VerifyStr
dependencies: 3
inputs: PE
Answer: yes