Question: Of California counties in Sierra Nevada, which occupies the biggest area?
Choices: Solano County
Plumas County
Butte County
San Luis Obispo County
San Mateo County
Tuolumne County
Contra Costa County
Alameda County
Mariposa County
San Diego County
SPARQL: SELECT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "county of California" . ?e <mountain_range> ?e_1 . ?e_1 <pred:name> "Sierra Nevada" .  ?e <area> ?pv . ?pv <pred:value> ?v .  } ORDER BY DESC(?v) LIMIT 1
Program:
function: Find
inputs: Sierra Nevada
function: Relate
dependencies: 0
inputs: mountain range
backward
function: FilterConcept
dependencies: 1
inputs: county of California
function: SelectAmong
dependencies: 2
inputs: area
largest
Answer: Plumas County