Question: Did the Apache Wars conclude in a year other than 1861?
Choices:
yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
Answer: yes
SPARQL: ASK { ?e <pred:name> "Apache Wars" . ?e <end_time> ?pv . ?pv <pred:year> ?v . FILTER ( ?v != 1861 ) .  }
Program:
function: Find
inputs: Apache Wars
function: QueryAttr
dependencies: 0
inputs: end time
function: VerifyYear
dependencies: 1
inputs: 1861
!=