Question: Did North Dakota's capital Bismarck begin before 1883?
Choices:
yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
Program:
function: Find
inputs: North Dakota
function: Relate
dependencies: 0
inputs: capital of
backward
function: Find
inputs: Bismarck
function: And
dependencies: 1
2
function: QueryAttr
dependencies: 3
inputs: inception
function: VerifyYear
dependencies: 4
inputs: 1883
<
SPARQL: ASK { ?e <pred:name> "Bismarck" . ?e <capital_of> ?e_1 . ?e_1 <pred:name> "North Dakota" .  ?e <inception> ?pv . ?pv <pred:year> ?v . FILTER ( ?v < 1883 ) .  }
Answer: yes