Lake Marble Falls
E538934
Lake Marble Falls is a man-made reservoir in the Texas Hill Country, known for recreation and hydroelectric power generation as part of the Highland Lakes chain.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Lake Marble Falls canonical | 2 |
| Lake Marble Falls (reservoir on the Colorado River) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5521917 — 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 Marble Falls Context triple: [Colorado River (Texas), reservoirOnRiver, Lake Marble Falls]
-
A.
Marble Falls
Marble Falls is a small Central Texas city known for its scenic location on the Colorado River, proximity to Highland Lakes, and role as a gateway to the Texas Hill Country.
-
B.
Lake Travis
Lake Travis is a large, popular reservoir on the Colorado River in central Texas known for boating, fishing, and waterfront recreation near Austin.
-
C.
Lake Austin
Lake Austin is a dammed section of the Colorado River in central Texas, popular for boating, fishing, and upscale waterfront homes near Austin.
-
D.
Lake Quitman
Lake Quitman is a small freshwater reservoir in Wood County, Texas, known primarily for fishing and outdoor recreation.
-
E.
Lake Conroe
Lake Conroe is a large man-made reservoir in southeast Texas known for boating, fishing, and serving as a major water supply and recreation area for the Houston 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: Lake Marble Falls Target entity description: Lake Marble Falls is a man-made reservoir in the Texas Hill Country, known for recreation and hydroelectric power generation as part of the Highland Lakes chain.
-
A.
Marble Falls
Marble Falls is a small Central Texas city known for its scenic location on the Colorado River, proximity to Highland Lakes, and role as a gateway to the Texas Hill Country.
-
B.
Lake Travis
Lake Travis is a large, popular reservoir on the Colorado River in central Texas known for boating, fishing, and waterfront recreation near Austin.
-
C.
Lake Austin
Lake Austin is a dammed section of the Colorado River in central Texas, popular for boating, fishing, and upscale waterfront homes near Austin.
-
D.
Lake Quitman
Lake Quitman is a small freshwater reservoir in Wood County, Texas, known primarily for fishing and outdoor recreation.
-
E.
Lake Conroe
Lake Conroe is a large man-made reservoir in southeast Texas known for boating, fishing, and serving as a major water supply and recreation area for the Houston region.
- F. None of above. chosen
Statements (31)
| Predicate | Object |
|---|---|
| instanceOf | reservoir ⓘ |
| basinCountry |
United States of America
ⓘ
surface form:
United States
|
| cityOnShore | Marble Falls, Texas NERFINISHED ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| createdBy | Marble Falls Dam NERFINISHED ⓘ |
| downstreamLake | Lake Travis NERFINISHED ⓘ |
| hasActivity |
boating
ⓘ
fishing ⓘ swimming ⓘ waterskiing ⓘ |
| hasDam | Marble Falls Dam NERFINISHED ⓘ |
| locatedIn | Texas ⓘ |
| locatedInRegion | Texas Hill Country NERFINISHED ⓘ |
| locatedNear | Marble Falls, Texas NERFINISHED ⓘ |
| locatedOnRiver | Colorado River (Texas) NERFINISHED ⓘ |
| managingOrganization | Lower Colorado River Authority NERFINISHED ⓘ |
| operator | Lower Colorado River Authority NERFINISHED ⓘ |
| partOf | Highland Lakes NERFINISHED ⓘ |
| partOfSystem | Lower Colorado River reservoir system NERFINISHED ⓘ |
| primaryInflow | Colorado River (Texas) NERFINISHED ⓘ |
| primaryOutflow | Colorado River (Texas) NERFINISHED ⓘ |
| purpose |
hydroelectric power generation
ⓘ
recreation ⓘ water storage ⓘ |
| region | Burnet County, Texas NERFINISHED ⓘ |
| state | Texas ⓘ |
| upstreamLake | Lake Lyndon B. Johnson NERFINISHED ⓘ |
| usedFor |
electricity generation
ⓘ
flood control ⓘ outdoor recreation ⓘ |
| watercourse | Colorado River (Texas) 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: Lake Marble Falls Description of subject: Lake Marble Falls is a man-made reservoir in the Texas Hill Country, known for recreation and hydroelectric power generation as part of the Highland Lakes chain.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Lake Marble Falls (reservoir on the Colorado River)