Question: regarding the instrument class that has country United States of America, is the vertical depth other than 45cm?
Choices:
yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
Answer: yes
SPARQL: ASK { ?e <pred:instance_of> ?c . ?c <pred:name> "class of instruments" . ?e <country> ?e_1 . ?e_1 <pred:name> "United States of America" .  ?e <vertical_depth> ?pv . ?pv <pred:unit> "centimetre" . ?pv <pred:value> ?v . FILTER ( ?v != "45"^^xsd:double ) .  }
Program:
function: Find
inputs: United States of America
function: Relate
dependencies: 0
inputs: country
backward
function: FilterConcept
dependencies: 1
inputs: class of instruments
function: QueryAttr
dependencies: 2
inputs: vertical depth
function: VerifyNum
dependencies: 3
inputs: 45 centimetre
!=