Question: What source does the Oakwood-Vaughan neighborhood get it's water from?
Answer(s):
answer: Ashbridges Bay Wastewater Treatment Plant

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ?c)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
?c ns:location.place_with_neighborhoods.neighborhoods ns:m.0gc92g . 
?c ns:base.infrastructure.infrastructural_municipality.sewage_treatment_plant ?x .
}