Question: Is the date of first performance of the television film titled Shadowlands before the year 1989?
Choices: yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
SPARQL: ASK { ?e <pred:instance_of> ?c . ?c <pred:name> "television film" . ?e <title> ?pv_1 . ?pv_1 <pred:value> "Shadowlands" . ?e <date_of_first_performance> ?pv . ?pv <pred:year> ?v . FILTER ( ?v < 1989 ) .  }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: title
Shadowlands
function: FilterConcept
dependencies: 1
inputs: television film
function: QueryAttr
dependencies: 2
inputs: date of first performance
function: VerifyYear
dependencies: 3
inputs: 1989
<
Answer: no