Question: Is the elevation above sea level of Rostov-on-Don not 4400 meters?
Choices:
yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
Answer: yes
SPARQL: ASK { ?e <pred:name> "Rostov-on-Don" . ?e <elevation_above_sea_level> ?pv . ?pv <pred:unit> "metre" . ?pv <pred:value> ?v . FILTER ( ?v != "4400"^^xsd:double ) .  }
Program:
function: Find
inputs: Rostov-on-Don
function: QueryAttr
dependencies: 0
inputs: elevation above sea level
function: VerifyNum
dependencies: 1
inputs: 4400 metre
!=