Question: Did Late Show with David Letterman debut prior to 1949 ?
Choices: yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
SPARQL: ASK { ?e <pred:name> "Late Show with David Letterman" . ?e <start_time> ?pv . ?pv <pred:year> ?v . FILTER ( ?v < 1949 ) .  }
Program:
function: Find
inputs: Late Show with David Letterman
function: QueryAttr
dependencies: 0
inputs: start time
function: VerifyYear
dependencies: 1
inputs: 1949
<
Answer: no