Question: What aircraft functional class is associated with the United States of America?
Choices: Blizzard Entertainment
Boeing 747
MacArthur Fellows Program
Anne of the Thousand Days
Concord
Hispanic and Latino Americans
Milwaukee Brewers
Ashish Vidyarthi
general counsel
Utah County
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "aircraft functional class" . ?e <country> ?e_1 . ?e_1 <pred:name> "United States of America" .   }
Program:
function: Find
inputs: United States of America
function: Relate
dependencies: 0
inputs: country
backward
function: FilterConcept
dependencies: 1
inputs: aircraft functional class
function: What
dependencies: 2
Answer: Boeing 747