Question: As of 1994, is the person who's partnered with David Copperfield (who has a Fordham University education) have a date of birth before 1901?
Choices: yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
SPARQL: ASK { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e <partner> ?e_1 . ?e_1 <pred:name> "David Copperfield" . ?e_1 <educated_at> ?e_2 . ?e_2 <pred:name> "Fordham University" .  [ <pred:fact_h> ?e ; <pred:fact_r> <partner> ; <pred:fact_t> ?e_1 ] <start_time> ?qpv . ?qpv <pred:year> 1994 . ?e <date_of_birth> ?pv . ?pv <pred:year> ?v . FILTER ( ?v < 1901 ) .  }
Program:
function: Find
inputs: Fordham University
function: Relate
dependencies: 0
inputs: educated at
backward
function: Find
inputs: David Copperfield
function: And
dependencies: 1
2
function: Relate
dependencies: 3
inputs: partner
backward
function: QFilterYear
dependencies: 4
inputs: start time
1994
=
function: FilterConcept
dependencies: 5
inputs: human
function: QueryAttr
dependencies: 6
inputs: date of birth
function: VerifyYear
dependencies: 7
inputs: 1901
<
Answer: no