Question: How many metropolitan areas are there whose country is the United States of America?
Choices: 15
16
17
18
19
20
21
22
23
24
SPARQL: SELECT (COUNT(DISTINCT ?e) AS ?count) WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "metropolitan area" . ?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: metropolitan area
function: Count
dependencies: 2
Answer: 15