Question: Of Soviet Union capitals, which is lowest in elevation?
Choices: Moscow
Mexico City
Kiev
Yerevan
Minsk
Baku
Lausanne
Riga
New Delhi
Doha
SPARQL: SELECT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "capital" . ?e <country> ?e_1 . ?e_1 <pred:name> "Soviet Union" .  ?e <elevation_above_sea_level> ?pv . ?pv <pred:value> ?v .  } ORDER BY ?v LIMIT 1
Program:
function: Find
inputs: Soviet Union
function: Relate
dependencies: 0
inputs: country
backward
function: FilterConcept
dependencies: 1
inputs: capital
function: SelectAmong
dependencies: 2
inputs: elevation above sea level
smallest
Answer: Baku