Blackwater Reservoir
E844468
Blackwater Reservoir is a man-made lake in New Hampshire that serves as a flood-control and water-management resource within the Merrimack River system.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Blackwater Reservoir canonical | 1 |
| Blackwater River Reservoir | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10146508 — 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: Blackwater Reservoir Context triple: [Merrimack River watershed, containsWaterBody, Blackwater Reservoir]
-
A.
Henne Reservoir
Henne Reservoir is a man-made lake in North Rhine-Westphalia, Germany, primarily used for water supply, flood control, and recreation.
-
B.
E. V. Spence Reservoir
E. V. Spence Reservoir is a man-made lake in West Texas that serves as a major water supply and recreational resource for the surrounding region.
-
C.
Cod Beck Reservoir
Cod Beck Reservoir is a small man-made lake in North Yorkshire, England, popular for walking and outdoor recreation near the village of Osmotherley.
-
D.
Valehouse Reservoir
Valehouse Reservoir is a man-made water storage lake in the Longdendale valley of Derbyshire, England, forming part of the chain of reservoirs supplying water to the Greater Manchester area.
-
E.
Norton Reservoir
Norton Reservoir is a man-made lake in Norton, Massachusetts, used primarily for recreation such as fishing and boating.
- 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: Blackwater Reservoir Target entity description: Blackwater Reservoir is a man-made lake in New Hampshire that serves as a flood-control and water-management resource within the Merrimack River system.
-
A.
Henne Reservoir
Henne Reservoir is a man-made lake in North Rhine-Westphalia, Germany, primarily used for water supply, flood control, and recreation.
-
B.
E. V. Spence Reservoir
E. V. Spence Reservoir is a man-made lake in West Texas that serves as a major water supply and recreational resource for the surrounding region.
-
C.
Cod Beck Reservoir
Cod Beck Reservoir is a small man-made lake in North Yorkshire, England, popular for walking and outdoor recreation near the village of Osmotherley.
-
D.
Valehouse Reservoir
Valehouse Reservoir is a man-made water storage lake in the Longdendale valley of Derbyshire, England, forming part of the chain of reservoirs supplying water to the Greater Manchester area.
-
E.
Norton Reservoir
Norton Reservoir is a man-made lake in Norton, Massachusetts, used primarily for recreation such as fishing and boating.
- F. None of above. chosen
Statements (24)
| Predicate | Object |
|---|---|
| instanceOf | reservoir ⓘ |
| basinCountry |
United States of America
ⓘ
surface form:
United States
|
| country |
United States of America
ⓘ
surface form:
United States
|
| createdByDamming | Blackwater River NERFINISHED ⓘ |
| hasFunction |
reducing downstream flooding on the Merrimack River
ⓘ
regulating seasonal river flows ⓘ storing floodwaters ⓘ |
| inflow | Blackwater River NERFINISHED ⓘ |
| isArtificial | true ⓘ |
| locatedIn |
Merrimack County, New Hampshire
NERFINISHED
ⓘ
New Hampshire ⓘ northern New England ⓘ |
| managingAgency | United States Army Corps of Engineers NERFINISHED ⓘ |
| outflow | Blackwater River NERFINISHED ⓘ |
| partOf | Merrimack River watershed NERFINISHED ⓘ |
| partOfProject | Merrimack River flood-control system ⓘ |
| purpose |
flood control
ⓘ
flow regulation ⓘ water management ⓘ |
| region | New England NERFINISHED ⓘ |
| typeOfDam | flood-control dam ⓘ |
| usedFor |
recreation
ⓘ
wildlife habitat ⓘ |
| watercourse | Merrimack River system NERFINISHED ⓘ |
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: Blackwater Reservoir Description of subject: Blackwater Reservoir is a man-made lake in New Hampshire that serves as a flood-control and water-management resource within the Merrimack River system.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Blackwater River Reservoir