Question: Is John Williams the native name of someone who died on 1837-08-10?
Choices:
yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
Answer: yes
SPARQL: ASK { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e <date_of_death> ?pv_1 . ?pv_1 <pred:date> "1837-08-10"^^xsd:date . ?e <name_in_native_language> ?pv . ?pv <pred:value> "John Williams" .  }
Program:
function: FindAll
function: FilterDate
dependencies: 0
inputs: date of death
1837-08-10
=
function: FilterConcept
dependencies: 1
inputs: human
function: QueryAttr
dependencies: 2
inputs: name in native language
function: VerifyStr
dependencies: 3
inputs: John Williams