Question: Does the producer of Congo not have 2 daughters?
Choices:
yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
Answer: no
SPARQL: ASK { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e_1 <producer> ?e . ?e_1 <pred:name> "Congo" .  ?e <number_of_children> ?pv . ?pv <pred:unit> "daughter" . ?pv <pred:value> ?v . FILTER ( ?v != "2"^^xsd:double ) .  }
Program:
function: Find
inputs: Congo
function: Relate
dependencies: 0
inputs: producer
forward
function: FilterConcept
dependencies: 1
inputs: human
function: QueryAttr
dependencies: 2
inputs: number of children
function: VerifyNum
dependencies: 3
inputs: 2 daughter
!=