Lena River
E17170
The Lena River is one of the longest rivers in the world, flowing through Siberia in northeastern Russia to the Arctic Ocean.
All labels observed (6)
| Label | Occurrences |
|---|---|
| Lena River canonical | 32 |
| Lena River basin | 11 |
| Lena River system | 1 |
| Lena River valley | 1 |
| Lena River watershed | 1 |
| Vilyuy River | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T105427 — 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: Lena River Context triple: [Asia, containsRiver, Lena River]
-
A.
Volga River
The Volga River is the longest river in Europe, flowing through central Russia to the Caspian Sea and serving as a vital waterway for transport, industry, and culture.
-
B.
Moskva River
The Moskva River is a major waterway in western Russia that flows through and gives its name to the capital city, Moscow.
-
C.
Sacandaga River
The Sacandaga River is a major river in upstate New York that drains the southern Adirondacks and flows into the Hudson River, historically important for logging, power generation, and recreation.
-
D.
Neva River
The Neva River is a major waterway in northwestern Russia that flows through Saint Petersburg into the Gulf of Finland, playing a central role in the city's geography, history, and economy.
-
E.
Choapa River
The Choapa River is a significant watercourse in north-central Chile that flows through the Coquimbo Region toward the Pacific Ocean, supporting local agriculture and settlements along its basin.
- 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: Lena River Target entity description: The Lena River is one of the longest rivers in the world, flowing through Siberia in northeastern Russia to the Arctic Ocean.
-
A.
Volga River
The Volga River is the longest river in Europe, flowing through central Russia to the Caspian Sea and serving as a vital waterway for transport, industry, and culture.
-
B.
Moskva River
The Moskva River is a major waterway in western Russia that flows through and gives its name to the capital city, Moscow.
-
C.
Sacandaga River
The Sacandaga River is a major river in upstate New York that drains the southern Adirondacks and flows into the Hudson River, historically important for logging, power generation, and recreation.
-
D.
Neva River
The Neva River is a major waterway in northwestern Russia that flows through Saint Petersburg into the Gulf of Finland, playing a central role in the city's geography, history, and economy.
-
E.
Choapa River
The Choapa River is a significant watercourse in north-central Chile that flows through the Coquimbo Region toward the Pacific Ocean, supporting local agriculture and settlements along its basin.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf | river ⓘ |
| averageDischarge | approximately 16,000 cubic meters per second ⓘ |
| basinCountry | Russia ⓘ |
| climateZone |
arctic
ⓘ
subarctic ⓘ |
| continent | Asia ⓘ |
| country | Russia ⓘ |
| countrySubdivision |
Irkutsk Oblast
ⓘ
Sakha Republic ⓘ
surface form:
Sakha Republic (Yakutia)
|
| deltaFeature | one of the largest Arctic river deltas ⓘ |
| deltaLocation | Laptev Sea ⓘ |
| dischargeLocation | Laptev Sea ⓘ |
| drainageBasinArea | approximately 2,490,000 square kilometers ⓘ |
| drainageTo | Arctic Ocean ⓘ |
| ecosystem | supports tundra and taiga ecosystems ⓘ |
| flowsInto | Laptev Sea ⓘ |
| flowsThrough |
Irkutsk Oblast
ⓘ
Russia Far East ⓘ
surface form:
Russian Far East
Sakha Republic ⓘ Yakutia ⓘ |
| freezingPeriod | freezes in winter ⓘ |
| hasDelta | Lena River Delta ⓘ |
| hasProtectedArea | Lena Delta Nature Reserve ⓘ |
| importance |
major transport route in Yakutia
ⓘ
significant for Arctic freshwater input ⓘ |
| length | approximately 4400 km ⓘ |
| lengthRanking |
one of the longest rivers in the world
ⓘ
one of the three great Siberian rivers ⓘ |
| locatedIn |
Russia
ⓘ
surface form:
Russian Federation
Siberia ⓘ northeastern Russia ⓘ |
| majorCityOnRiver |
Lensk
ⓘ
Olenyok ⓘ Yakutsk ⓘ |
| majorPort | Tiksi ⓘ |
| mouthLocation | Laptev Sea ⓘ |
| namedAfter | possibly from Evenki word "Elyu-Ene" ⓘ |
| navigation | navigable in ice-free season ⓘ |
| partOf |
Arctic Ocean
ⓘ
surface form:
Arctic Ocean basin
|
| region |
Russia Far East
ⓘ
surface form:
Eastern Siberia
|
| sourceLocation |
Baikal Mountains
ⓘ
near Lake Baikal ⓘ |
| tributary |
Olyokma River
ⓘ
surface form:
Aldan River
Buotama River ⓘ Kirenga River ⓘ Linde River ⓘ Olyokma River ⓘ Lena River self-linksurface differs ⓘ
surface form:
Vilyuy River
Vitim 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: Lena River Description of subject: The Lena River is one of the longest rivers in the world, flowing through Siberia in northeastern Russia to the Arctic Ocean.
Referenced by (47)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Lena River basin
this entity surface form:
Vilyuy River
this entity surface form:
Lena River basin
this entity surface form:
Lena River basin
this entity surface form:
Lena River basin
this entity surface form:
Lena River basin
this entity surface form:
Lena River basin
this entity surface form:
Lena River system
this entity surface form:
Lena River basin
this entity surface form:
Lena River basin
this entity surface form:
Lena River basin
this entity surface form:
Lena River watershed
this entity surface form:
Lena River basin
this entity surface form:
Lena River basin
this entity surface form:
Lena River valley