Masonry Pool
E558186
Masonry Pool is a reservoir in Washington State that serves as part of the regional water and hydroelectric system within the Lake Washington–Cedar River watershed.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Masonry Pool canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5953874 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Masonry Pool Context triple: [Lake Washington–Cedar River watershed, contains, Masonry Pool]
-
A.
Barmedman Mineral Pool
Barmedman Mineral Pool is a large, spring-fed outdoor swimming pool in Barmedman, New South Wales, noted for its mineral-rich waters and popular recreational setting.
-
B.
Teardrop Pool
Teardrop Pool is a small, often snowmelt-fed tarn located near the summit of South Sister in the Cascade Range of Oregon.
-
C.
Empire Pool
Empire Pool is an indoor arena in Wembley, London, historically known for hosting major sporting and entertainment events, including competitions during the 1948 Summer Olympics.
-
D.
Emerald Pools
Emerald Pools is a popular series of scenic waterfalls and green-hued pools along a family-friendly hiking trail in Zion National Park, Utah.
-
E.
Segaran Pool
Segaran Pool is a large ancient man-made reservoir in Trowulan, Indonesia, believed to have served ceremonial and possibly recreational functions during the Majapahit Kingdom.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Masonry Pool Target entity description: Masonry Pool is a reservoir in Washington State that serves as part of the regional water and hydroelectric system within the Lake Washington–Cedar River watershed.
-
A.
Barmedman Mineral Pool
Barmedman Mineral Pool is a large, spring-fed outdoor swimming pool in Barmedman, New South Wales, noted for its mineral-rich waters and popular recreational setting.
-
B.
Teardrop Pool
Teardrop Pool is a small, often snowmelt-fed tarn located near the summit of South Sister in the Cascade Range of Oregon.
-
C.
Empire Pool
Empire Pool is an indoor arena in Wembley, London, historically known for hosting major sporting and entertainment events, including competitions during the 1948 Summer Olympics.
-
D.
Emerald Pools
Emerald Pools is a popular series of scenic waterfalls and green-hued pools along a family-friendly hiking trail in Zion National Park, Utah.
-
E.
Segaran Pool
Segaran Pool is a large ancient man-made reservoir in Trowulan, Indonesia, believed to have served ceremonial and possibly recreational functions during the Majapahit Kingdom.
- F. None of above. chosen
Statements (31)
| Predicate | Object |
|---|---|
| instanceOf | reservoir ⓘ |
| accessPolicy | restricted public access due to drinking water protection ⓘ |
| basinCountry |
United States of America
ⓘ
surface form:
United States
|
| connectedTo | Cedar Falls Hydroelectric Project NERFINISHED ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| energyInfrastructureRole | storage for hydroelectric generation scheduling ⓘ |
| environmentalRole | aquatic habitat within Cedar River watershed ⓘ |
| formedBy | Masonry Dam ⓘ |
| function |
regulation of Cedar River flows
ⓘ
support of hydroelectric generation at Cedar Falls facilities ⓘ support of municipal water supply for Seattle area ⓘ |
| hasPart | Cedar River water storage NERFINISHED ⓘ |
| inflow | Cedar River NERFINISHED ⓘ |
| locatedIn |
King County
ⓘ
surface form:
King County, Washington
Washington ⓘ
surface form:
Washington State
|
| locatedInProtectedArea | Cedar River Municipal Watershed NERFINISHED ⓘ |
| locatedNear | Cedar Falls, Washington NERFINISHED ⓘ |
| locatedOnWatercourse | Cedar River NERFINISHED ⓘ |
| managedBy | Seattle Public Utilities NERFINISHED ⓘ |
| operator | City of Seattle NERFINISHED ⓘ |
| outflow | Cedar River NERFINISHED ⓘ |
| partOf |
Lake Washington–Cedar River watershed
NERFINISHED
ⓘ
Seattle municipal water system NERFINISHED ⓘ |
| region | Pacific Northwest ⓘ |
| stateHydrologicUnit | Lake Washington–Cedar River basin NERFINISHED ⓘ |
| use |
flood control
ⓘ
hydroelectric power generation ⓘ water supply ⓘ |
| watershed | Cedar River watershed NERFINISHED ⓘ |
| waterSystem | regional water and hydroelectric system of the Lake Washington–Cedar River basin ⓘ |
| waterUse | drinking water source for Seattle metropolitan area ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Masonry Pool Description of subject: Masonry Pool is a reservoir in Washington State that serves as part of the regional water and hydroelectric system within the Lake Washington–Cedar River watershed.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.