Question: Which geographic region has its lowest point in Samoa (which has an above sea level elevation of 0 metres) and has a Stack Exchange tag of https://travel.stackexchange.com/tags/pacific-ocean?
Choices: Pacific Ocean
Tibet
Transylvania
Antarctica
Caribbean
South America
Africa
Southern California
Atlantic Canada
Lake District
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "geographic region" . ?e_1 <lowest_point> ?e . ?e_1 <pred:name> "Samoa" .  [ <pred:fact_h> ?e_1 ; <pred:fact_r> <lowest_point> ; <pred:fact_t> ?e ] <elevation_above_sea_level> ?qpv . ?qpv <pred:unit> "metre" . ?qpv <pred:value> "0"^^xsd:double . ?e <Stack_Exchange_tag> ?pv . ?pv <pred:value> "https://travel.stackexchange.com/tags/pacific-ocean" .  }
Program:
function: Find
inputs: Samoa
function: Relate
dependencies: 0
inputs: lowest point
forward
function: QFilterNum
dependencies: 1
inputs: elevation above sea level
0 metre
=
function: FilterConcept
dependencies: 2
inputs: geographic region
function: FindAll
function: FilterStr
dependencies: 4
inputs: Stack Exchange tag
https://travel.stackexchange.com/tags/pacific-ocean
function: FilterConcept
dependencies: 5
inputs: geographic region
function: And
dependencies: 3
6
function: What
dependencies: 7
Answer: Pacific Ocean