Question: Is 31fhk94m0s4wkg7 the Libris-URI for John Williams whose British Museum person-institution is 51183?
Choices: yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
SPARQL: ASK { ?e <pred:name> "John Williams" . ?e <British_Museum_person-institution> ?pv_1 . ?pv_1 <pred:value> "51183" . ?e <Libris-URI> ?pv . ?pv <pred:value> "31fhk94m0s4wkg7" .  }
Program:
function: Find
inputs: John Williams
function: FilterStr
dependencies: 0
inputs: British Museum person-institution
51183
function: QueryAttr
dependencies: 1
inputs: Libris-URI
function: VerifyStr
dependencies: 2
inputs: 31fhk94m0s4wkg7
Answer: no