Question: Did the person known by the pseudonym of Luda start working before 2004?
Choices: yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
SPARQL: ASK { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e <pseudonym> ?pv_1 . ?pv_1 <pred:value> "Luda" . ?e <work_period_(start)> ?pv . ?pv <pred:year> ?v . FILTER ( ?v < 2004 ) .  }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: pseudonym
Luda
function: FilterConcept
dependencies: 1
inputs: human
function: QueryAttr
dependencies: 2
inputs: work period (start)
function: VerifyYear
dependencies: 3
inputs: 2004
<
Answer: yes