Question: Did Lily Allen's work period start before 1999?
Choices:
yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
Program:
function: Find
inputs: Lily Allen
function: QueryAttr
dependencies: 0
inputs: work period (start)
function: VerifyYear
dependencies: 1
inputs: 1999
<
SPARQL: ASK { ?e <pred:name> "Lily Allen" . ?e <work_period_(start)> ?pv . ?pv <pred:year> ?v . FILTER ( ?v < 1999 ) .  }
Answer: yes