Question: Which Arizona county whose country is the United States of America has the largest area?
Choices: Coconino County
Santa Cruz County
Gila County
Pinal County
Mohave County
Navajo County
Pima County
Cochise County
Yavapai County
Maricopa County
SPARQL: SELECT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "county of Arizona" . ?e <country> ?e_1 . ?e_1 <pred:name> "United States of America" .  ?e <area> ?pv . ?pv <pred:value> ?v .  } ORDER BY DESC(?v) LIMIT 1
Program:
function: Find
inputs: United States of America
function: Relate
dependencies: 0
inputs: country
backward
function: FilterConcept
dependencies: 1
inputs: county of Arizona
function: SelectAmong
dependencies: 2
inputs: area
largest
Answer: Coconino County