Question: Is the elevation of Cameron County's capital in United States  less than 2100 metres bove sea level?
Choices:
yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
Program:
function: Find
inputs: Cameron County
function: Relate
dependencies: 0
inputs: capital of
backward
function: FilterConcept
dependencies: 1
inputs: city of the United States
function: QueryAttr
dependencies: 2
inputs: elevation above sea level
function: VerifyNum
dependencies: 3
inputs: 2100 metre
<
SPARQL: ASK { ?e <pred:instance_of> ?c . ?c <pred:name> "city of the United States" . ?e <capital_of> ?e_1 . ?e_1 <pred:name> "Cameron County" .  ?e <elevation_above_sea_level> ?pv . ?pv <pred:unit> "metre" . ?pv <pred:value> ?v . FILTER ( ?v < "2100"^^xsd:double ) .  }
Answer: yes