Question: Is the beginning date for progressive metal prior to the year 2000?
Choices:
yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
Answer: yes
SPARQL: ASK { ?e <pred:name> "progressive metal" . ?e <start_time> ?pv . ?pv <pred:year> ?v . FILTER ( ?v < 2000 ) .  }
Program:
function: Find
inputs: progressive metal
function: QueryAttr
dependencies: 0
inputs: start time
function: VerifyYear
dependencies: 1
inputs: 2000
<