Question: Was the closing time of the 1928 Summer Olympics not 1991 ?
Choices:
yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
Answer: yes
SPARQL: ASK { ?e <pred:name> "1928 Summer Olympics" . ?e <end_time> ?pv . ?pv <pred:year> ?v . FILTER ( ?v != 1991 ) .  }
Program:
function: Find
inputs: 1928 Summer Olympics
function: QueryAttr
dependencies: 0
inputs: end time
function: VerifyYear
dependencies: 1
inputs: 1991
!=