Question: Was the town of the US with the twinned administrative body of Haifa founded before 1909?
Choices: yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
SPARQL: ASK { ?e <pred:instance_of> ?c . ?c <pred:name> "town of the United States" . ?e <twinned_administrative_body> ?e_1 . ?e_1 <pred:name> "Haifa" .  ?e <inception> ?pv . ?pv <pred:year> ?v . FILTER ( ?v < 1909 ) .  }
Program:
function: Find
inputs: Haifa
function: Relate
dependencies: 0
inputs: twinned administrative body
backward
function: FilterConcept
dependencies: 1
inputs: town of the United States
function: QueryAttr
dependencies: 2
inputs: inception
function: VerifyYear
dependencies: 3
inputs: 1909
<
Answer: yes