U.S. Army Corps of Engineers (near John Martin Reservoir)
E819296
The U.S. Army Corps of Engineers (near John Martin Reservoir) is the regional division of the federal engineering and water management agency responsible for flood control, water resource management, and related infrastructure projects in the area around John Martin Reservoir on the Purgatoire River.
All labels observed (1)
| Label | Occurrences |
|---|---|
| U.S. Army Corps of Engineers (near John Martin Reservoir) canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9766408 — 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: U.S. Army Corps of Engineers (near John Martin Reservoir) Context triple: [Purgatoire River, managingAgency, U.S. Army Corps of Engineers (near John Martin Reservoir)]
-
A.
Monticello Dam
Monticello Dam is a large concrete arch dam in Napa County, California, that creates Lake Berryessa and provides water storage, flood control, and hydroelectric power.
-
B.
Chatfield Dam
Chatfield Dam is a large flood-control and water-storage structure in Colorado that creates Chatfield Reservoir on the South Platte River near Denver.
-
C.
West Point Dam
West Point Dam is a large U.S. Army Corps of Engineers hydroelectric and flood-control dam on the Chattahoochee River, forming West Point Lake on the Alabama–Georgia border.
-
D.
Saylorville Dam
Saylorville Dam is a large flood-control and recreation dam on the Des Moines River in central Iowa, forming Saylorville Lake just upstream of Des Moines.
-
E.
Tom Miller Dam
Tom Miller Dam is a concrete dam on the Colorado River in Austin, Texas, that forms Lake Austin and helps provide flood control and hydroelectric power for the region.
- 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: U.S. Army Corps of Engineers (near John Martin Reservoir) Target entity description: The U.S. Army Corps of Engineers (near John Martin Reservoir) is the regional division of the federal engineering and water management agency responsible for flood control, water resource management, and related infrastructure projects in the area around John Martin Reservoir on the Purgatoire River.
-
A.
Monticello Dam
Monticello Dam is a large concrete arch dam in Napa County, California, that creates Lake Berryessa and provides water storage, flood control, and hydroelectric power.
-
B.
Chatfield Dam
Chatfield Dam is a large flood-control and water-storage structure in Colorado that creates Chatfield Reservoir on the South Platte River near Denver.
-
C.
West Point Dam
West Point Dam is a large U.S. Army Corps of Engineers hydroelectric and flood-control dam on the Chattahoochee River, forming West Point Lake on the Alabama–Georgia border.
-
D.
Saylorville Dam
Saylorville Dam is a large flood-control and recreation dam on the Des Moines River in central Iowa, forming Saylorville Lake just upstream of Des Moines.
-
E.
Tom Miller Dam
Tom Miller Dam is a concrete dam on the Colorado River in Austin, Texas, that forms Lake Austin and helps provide flood control and hydroelectric power for the region.
- F. None of above. chosen
Statements (31)
| Predicate | Object |
|---|---|
| instanceOf |
regional office of federal agency
ⓘ
water resources management organization ⓘ |
| coordinatesWith |
local governments near John Martin Reservoir
ⓘ
state water management agencies ⓘ |
| country | United States of America ⓘ |
| fieldOfWork |
civil engineering
ⓘ
flood control engineering ⓘ hydrology ⓘ water resources engineering ⓘ |
| governs |
operation of John Martin Reservoir for flood control
ⓘ
operation of John Martin Reservoir for water supply and other authorized purposes ⓘ |
| hasRole |
federal flood control authority in the John Martin Reservoir area
ⓘ
federal water management authority in the John Martin Reservoir area ⓘ |
| jurisdiction |
federal government of the United States
ⓘ
linked to:
United States government
|
| locatedNear | John Martin Reservoir ⓘ |
| locatedOnWaterbody | Purgatoire River ⓘ |
| manages |
flood risk reduction structures near John Martin Reservoir
ⓘ
water storage operations at John Martin Reservoir ⓘ |
| operatesIn |
Purgatoire River basin
ⓘ
linked to:
Purgatoire River
area surrounding John Martin Reservoir ⓘ |
| parentAgency | United States Department of the Army ⓘ |
| partOf |
United States Army Corps of Engineers
ⓘ
linked to:
U.S. Army Corps of Engineers
|
| purpose |
maintenance of federal water infrastructure near John Martin Reservoir
ⓘ
optimization of water storage and releases for multiple uses ⓘ protection of downstream communities from flooding ⓘ |
| regulates | water releases from John Martin Reservoir ⓘ |
| responsibleFor |
flood control near John Martin Reservoir
ⓘ
infrastructure projects near John Martin Reservoir ⓘ water resource management near John Martin Reservoir ⓘ |
| sector | public sector ⓘ |
| uses | federal engineering standards ⓘ |
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: U.S. Army Corps of Engineers (near John Martin Reservoir) Description of subject: The U.S. Army Corps of Engineers (near John Martin Reservoir) is the regional division of the federal engineering and water management agency responsible for flood control, water resource management, and related infrastructure projects in the area around John Martin Reservoir on the Purgatoire River.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.