Lake Red Rock
E89589
Lake Red Rock is the largest lake in Iowa, a popular reservoir on the Des Moines River known for recreation, wildlife habitat, and flood control.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Lake Red Rock canonical | 8 |
How this entity was disambiguated
This entity first appeared as the object of triple T687137 — 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: Lake Red Rock Context triple: [Marion County, Iowa, contains, Lake Red Rock]
-
A.
Lake Mohave
Lake Mohave is a large reservoir on the Colorado River along the Arizona–Nevada border, popular for boating, fishing, and other water recreation within the Lake Mead National Recreation Area.
-
B.
Paulina Lake
Paulina Lake is a high-elevation volcanic crater lake in central Oregon, known for its clear waters, hot springs, and location within the Newberry National Volcanic Monument.
-
C.
Pyramid Lake
Pyramid Lake is a large desert lake in northwestern Nevada known for its striking pyramid-shaped tufa formations and cultural significance to the Pyramid Lake Paiute Tribe.
-
D.
Desolation Canyon
Desolation Canyon is a remote, rugged gorge in Death Valley National Park known for its colorful badlands, narrow washes, and scenic hiking routes through eroded desert terrain.
-
E.
Snake Valley
Snake Valley is a remote, arid basin on the Utah–Nevada border known for its desert landscapes, groundwater-dependent ecosystems, and proximity to Great Basin National Park.
- 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: Lake Red Rock Target entity description: Lake Red Rock is the largest lake in Iowa, a popular reservoir on the Des Moines River known for recreation, wildlife habitat, and flood control.
-
A.
Lake Mohave
Lake Mohave is a large reservoir on the Colorado River along the Arizona–Nevada border, popular for boating, fishing, and other water recreation within the Lake Mead National Recreation Area.
-
B.
Paulina Lake
Paulina Lake is a high-elevation volcanic crater lake in central Oregon, known for its clear waters, hot springs, and location within the Newberry National Volcanic Monument.
-
C.
Pyramid Lake
Pyramid Lake is a large desert lake in northwestern Nevada known for its striking pyramid-shaped tufa formations and cultural significance to the Pyramid Lake Paiute Tribe.
-
D.
Desolation Canyon
Desolation Canyon is a remote, rugged gorge in Death Valley National Park known for its colorful badlands, narrow washes, and scenic hiking routes through eroded desert terrain.
-
E.
Snake Valley
Snake Valley is a remote, arid basin on the Utah–Nevada border known for its desert landscapes, groundwater-dependent ecosystems, and proximity to Great Basin National Park.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
artificial lake
ⓘ
lake ⓘ reservoir ⓘ |
| basinCountry |
United States of America
ⓘ
surface form:
United States
|
| country |
United States of America
ⓘ
surface form:
United States
|
| createdByStructure | Red Rock Dam ⓘ |
| ecosystemService |
aquatic habitat
ⓘ
bird habitat ⓘ |
| function | reduces downstream flooding on the Des Moines River ⓘ |
| hasFeature |
boat ramps
ⓘ
campgrounds ⓘ public recreation areas ⓘ trails ⓘ wetlands ⓘ wildlife refuges ⓘ |
| hasFloodControlRoleFor |
Des Moines, Iowa
ⓘ
downstream communities on the Des Moines River ⓘ |
| hasRecreationManagement | U.S. Army Corps of Engineers recreation program ⓘ |
| hasShorelineType |
flooded timber areas
ⓘ
rocky bluffs ⓘ sand and mud flats ⓘ |
| hasUse |
boating
ⓘ
camping ⓘ fishing ⓘ hiking ⓘ hunting ⓘ wildlife viewing ⓘ |
| knownFor |
migratory bird watching
ⓘ
scenic bluffs and shorelines ⓘ water-based recreation ⓘ |
| largestLakeIn | Iowa ⓘ |
| locatedIn |
Iowa
ⓘ
Marion County, Iowa ⓘ |
| locatedInRegion | south-central Iowa ⓘ |
| locatedNear |
Knoxville, Iowa
ⓘ
Pella, Iowa ⓘ |
| locatedOnRiver | Des Moines River ⓘ |
| managingAgency |
U.S. Army Corps of Engineers
ⓘ
surface form:
United States Army Corps of Engineers
|
| partOf |
Des Moines River
ⓘ
surface form:
Des Moines River basin
|
| purpose |
flood control
ⓘ
recreation ⓘ wildlife habitat ⓘ |
| typeOfWaterBody | inland reservoir ⓘ |
| usedFor |
motorized boating
ⓘ
nature education ⓘ non-motorized boating ⓘ picnicking ⓘ swimming ⓘ |
| watercourse | Des Moines River ⓘ |
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: Lake Red Rock Description of subject: Lake Red Rock is the largest lake in Iowa, a popular reservoir on the Des Moines River known for recreation, wildlife habitat, and flood control.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Marion County, Iowa