Question: Does the industry that has an end time of 1815-11-20 have a start time prior to 1860?
Choices: yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
SPARQL: ASK { ?e <pred:instance_of> ?c . ?c <pred:name> "industry" . ?e <end_time> ?pv_1 . ?pv_1 <pred:date> "1815-11-20"^^xsd:date . ?e <start_time> ?pv . ?pv <pred:year> ?v . FILTER ( ?v < 1860 ) .  }
Program:
function: FindAll
function: FilterDate
dependencies: 0
inputs: end time
1815-11-20
=
function: FilterConcept
dependencies: 1
inputs: industry
function: QueryAttr
dependencies: 2
inputs: start time
function: VerifyYear
dependencies: 3
inputs: 1860
<
Answer: yes