Question: Did the heavy metal that includes the movement Iron Maiden begin outside of 1642?
Choices:
yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
Answer: yes
SPARQL: ASK { ?e <pred:instance_of> ?c . ?c <pred:name> "heavy metal" . ?e_1 <movement> ?e . ?e_1 <pred:name> "Iron Maiden" .  ?e <inception> ?pv . ?pv <pred:year> ?v . FILTER ( ?v != 1642 ) .  }
Program:
function: Find
inputs: Iron Maiden
function: Relate
dependencies: 0
inputs: movement
forward
function: FilterConcept
dependencies: 1
inputs: heavy metal
function: QueryAttr
dependencies: 2
inputs: inception
function: VerifyYear
dependencies: 3
inputs: 1642
!=