Ob River basin
E755260
The Ob River basin is a vast drainage area in western Siberia that collects waters from numerous rivers before they flow northward into the Arctic Ocean.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Ob River basin canonical | 16 |
| Ob river system | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8762472 — 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: Ob River basin Context triple: [Barnaul, riverBasin, Ob River basin]
-
A.
Prien River basin
The Prien River basin is the drainage area surrounding the Prien River in Bavaria, Germany, encompassing the town of Prien am Chiemsee and its surrounding landscapes.
-
B.
Homathko River basin
The Homathko River basin is a remote watershed in the Coast Mountains of British Columbia that channels glacial meltwater and mountain runoff from high icefields and peaks to the Pacific Ocean via Bute Inlet.
-
C.
Rock River basin
The Rock River basin is the watershed region in the Upper Midwest of the United States that collects and channels water flowing into the Rock River and its tributaries.
-
D.
Cheat River basin
The Cheat River basin is a watershed in the Allegheny Mountains of West Virginia and Pennsylvania that collects runoff from highland areas, including Cheat Mountain, before draining into the Monongahela River system.
-
E.
Gardon river basin
The Gardon river basin is the hydrological catchment area in southern France that drains the Gardon River and its tributaries, encompassing diverse mountainous and Mediterranean landscapes.
- 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: Ob River basin Target entity description: The Ob River basin is a vast drainage area in western Siberia that collects waters from numerous rivers before they flow northward into the Arctic Ocean.
-
A.
Prien River basin
The Prien River basin is the drainage area surrounding the Prien River in Bavaria, Germany, encompassing the town of Prien am Chiemsee and its surrounding landscapes.
-
B.
Homathko River basin
The Homathko River basin is a remote watershed in the Coast Mountains of British Columbia that channels glacial meltwater and mountain runoff from high icefields and peaks to the Pacific Ocean via Bute Inlet.
-
C.
Rock River basin
The Rock River basin is the watershed region in the Upper Midwest of the United States that collects and channels water flowing into the Rock River and its tributaries.
-
D.
Cheat River basin
The Cheat River basin is a watershed in the Allegheny Mountains of West Virginia and Pennsylvania that collects runoff from highland areas, including Cheat Mountain, before draining into the Monongahela River system.
-
E.
Gardon river basin
The Gardon river basin is the hydrological catchment area in southern France that drains the Gardon River and its tributaries, encompassing diverse mountainous and Mediterranean landscapes.
- F. None of above. chosen
Statements (71)
| Predicate | Object |
|---|---|
| instanceOf |
drainage basin
ⓘ
river basin ⓘ |
| climate | continental climate ⓘ |
| containsCity |
Barnaul
NERFINISHED
ⓘ
Khanty-Mansiysk NERFINISHED ⓘ Nizhnevartovsk NERFINISHED ⓘ Novosibirsk NERFINISHED ⓘ Omsk NERFINISHED ⓘ Salekhard NERFINISHED ⓘ Surgut NERFINISHED ⓘ Tomsk NERFINISHED ⓘ Tyumen NERFINISHED ⓘ |
| continent | Asia ⓘ |
| country | Russia ⓘ |
| drainedBy | Ob River NERFINISHED ⓘ |
| drainsInto | Arctic Ocean NERFINISHED ⓘ |
| flowsDirection | northward ⓘ |
| hasEconomicActivity |
agriculture
ⓘ
natural gas production ⓘ oil production ⓘ river transport ⓘ timber industry ⓘ |
| hasFeature |
extensive wetlands
ⓘ
permafrost areas ⓘ taiga forests ⓘ |
| hasMajorRiver | Ob River NERFINISHED ⓘ |
| hasMajorTributary |
Agan River
NERFINISHED
ⓘ
Aley River NERFINISHED ⓘ Amnya River NERFINISHED ⓘ Barnaulka River NERFINISHED ⓘ Biya River NERFINISHED ⓘ Chaya River NERFINISHED ⓘ Chulym River NERFINISHED ⓘ Inya River NERFINISHED ⓘ Irtysh River NERFINISHED ⓘ Ishim River NERFINISHED ⓘ Katun River NERFINISHED ⓘ Kazym River NERFINISHED ⓘ Ket River NERFINISHED ⓘ Kunovat River NERFINISHED ⓘ Lyamin River NERFINISHED ⓘ Lyapin River NERFINISHED ⓘ Nazym River NERFINISHED ⓘ Northern Sosva River NERFINISHED ⓘ Om River NERFINISHED ⓘ Parabel River NERFINISHED ⓘ Poluy River NERFINISHED ⓘ Salym River NERFINISHED ⓘ Sob River NERFINISHED ⓘ Synya River NERFINISHED ⓘ Tara River NERFINISHED ⓘ Tobol River NERFINISHED ⓘ Tom River NERFINISHED ⓘ Tromagan River NERFINISHED ⓘ Tym River NERFINISHED ⓘ Vakh River NERFINISHED ⓘ Vasyugan River NERFINISHED ⓘ Yuganskaya Ob NERFINISHED ⓘ |
| hasOutlet | Gulf of Ob NERFINISHED ⓘ |
| hasRegion |
Altai Krai
NERFINISHED
ⓘ
Altai Republic NERFINISHED ⓘ Kemerovo Oblast NERFINISHED ⓘ Khanty-Mansi Autonomous Okrug NERFINISHED ⓘ Novosibirsk Oblast NERFINISHED ⓘ Omsk Oblast NERFINISHED ⓘ Tomsk Oblast NERFINISHED ⓘ Tyumen Oblast NERFINISHED ⓘ Yamalo-Nenets Autonomous Okrug NERFINISHED ⓘ |
| locatedIn |
Russia
ⓘ
Western Siberia NERFINISHED ⓘ |
| partOf | Arctic Ocean drainage basin 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: Ob River basin Description of subject: The Ob River basin is a vast drainage area in western Siberia that collects waters from numerous rivers before they flow northward into the Arctic Ocean.
Referenced by (17)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Ob river system