Question: Did the Vietnam War begin earlier than the year 2017 ?
Choices:
yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
Answer: yes
SPARQL: ASK { ?e <pred:name> "Vietnam War" . ?e <start_time> ?pv . ?pv <pred:year> ?v . FILTER ( ?v < 2017 ) .  }
Program:
function: Find
inputs: Vietnam War
function: QueryAttr
dependencies: 0
inputs: start time
function: VerifyYear
dependencies: 1
inputs: 2017
<