Question: Of republics that belong to Eastern Europe, which has the lowest  PPP GDP per capita?
Choices:
Sierra Leone
Tunisia
Belarus
Namibia
Mozambique
Italy
Slovakia
Ukraine
Zimbabwe
Colombia
Program:
function: Find
inputs: Eastern Europe
function: Relate
dependencies: 0
inputs: part of
backward
function: FilterConcept
dependencies: 1
inputs: republic
function: SelectAmong
dependencies: 2
inputs: PPP GDP per capita
smallest
SPARQL: SELECT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "republic" . ?e <part_of> ?e_1 . ?e_1 <pred:name> "Eastern Europe" .  ?e <PPP_GDP_per_capita> ?pv . ?pv <pred:value> ?v .  } ORDER BY ?v LIMIT 1
Answer: Ukraine