Vistula Lagoon
E187507
Vistula Lagoon is a shallow, brackish coastal lagoon on the Baltic Sea, shared by Poland and Russia’s Kaliningrad Oblast, known for its sandspit barrier and important bird habitats.
All labels observed (5)
| Label | Occurrences |
|---|---|
| Vistula Lagoon canonical | 24 |
| Vistula Lagoon region | 2 |
| Elbląg River estuary | 1 |
| Vistula Lagoon (via delta channels) | 1 |
| Zalew Wiślany | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1641221 — 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: Vistula Lagoon Context triple: [Bay of Gdańsk, hasInlet, Vistula Lagoon]
-
A.
Szczecin Lagoon
The Szczecin Lagoon is a large brackish water lagoon on the Baltic Sea, shared by Poland and Germany, known for its rich birdlife, fisheries, and role as a key waterway near the port city of Szczecin.
-
B.
Vistula Delta
The Vistula Delta is the low-lying, fertile region in northern Poland where the Vistula River branches and empties into the Baltic Sea, characterized by extensive wetlands, polders, and a long history of human land reclamation.
-
C.
Curonian Lagoon
The Curonian Lagoon is a shallow, brackish coastal lagoon of the Baltic Sea, bordered by Lithuania and Russia’s Kaliningrad Oblast and separated from the sea by the Curonian Spit.
-
D.
Oder River delta
The Oder River delta is the low-lying, marshy region where the Oder River empties into the Baltic Sea, forming a complex network of channels, lagoons, and wetlands along the German-Polish coast.
-
E.
Bay of Gdańsk
The Bay of Gdańsk is a large gulf on the southern coast of the Baltic Sea, bordered by Poland and Russia, known for its major ports, beaches, and historical maritime trade.
- 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: Vistula Lagoon Target entity description: Vistula Lagoon is a shallow, brackish coastal lagoon on the Baltic Sea, shared by Poland and Russia’s Kaliningrad Oblast, known for its sandspit barrier and important bird habitats.
-
A.
Szczecin Lagoon
The Szczecin Lagoon is a large brackish water lagoon on the Baltic Sea, shared by Poland and Germany, known for its rich birdlife, fisheries, and role as a key waterway near the port city of Szczecin.
-
B.
Vistula Delta
The Vistula Delta is the low-lying, fertile region in northern Poland where the Vistula River branches and empties into the Baltic Sea, characterized by extensive wetlands, polders, and a long history of human land reclamation.
-
C.
Curonian Lagoon
The Curonian Lagoon is a shallow, brackish coastal lagoon of the Baltic Sea, bordered by Lithuania and Russia’s Kaliningrad Oblast and separated from the sea by the Curonian Spit.
-
D.
Oder River delta
The Oder River delta is the low-lying, marshy region where the Oder River empties into the Baltic Sea, forming a complex network of channels, lagoons, and wetlands along the German-Polish coast.
-
E.
Bay of Gdańsk
The Bay of Gdańsk is a large gulf on the southern coast of the Baltic Sea, bordered by Poland and Russia, known for its major ports, beaches, and historical maritime trade.
- F. None of above. chosen
Statements (51)
| Predicate | Object |
|---|---|
| instanceOf |
Ramsar site
ⓘ
brackish water body ⓘ coastal lagoon ⓘ transboundary water body ⓘ |
| alsoKnownAs |
Frisches Haff
ⓘ
Kaliningradsky Zaliv ⓘ
linked to:
Curonian Lagoon
Zalew Wiślany ⓘ
linked to:
Vistula Lagoon
|
| area | about 838 square kilometres ⓘ |
| averageDepth | about 2.7 metres ⓘ |
| borderedBy |
city of Elbląg
ⓘ
city of Kaliningrad region settlements ⓘ town of Frombork ⓘ
linked to:
Frombork
town of Tolkmicko ⓘ
linked to:
Tolkmicko
|
| climate | temperate maritime ⓘ |
| connectedTo |
Gdańsk Bay
ⓘ
linked to:
Bay of Gdańsk
|
| country |
Poland
ⓘ
Russia ⓘ |
| freezesOver | in winter in severe cold periods ⓘ |
| hasBiodiversity |
brackish-water fish species
ⓘ
migratory birds ⓘ waterfowl ⓘ |
| hasEcologicalSignificance |
important bird habitat
ⓘ
important fish spawning area ⓘ |
| hasNavigationChannel |
Kaliningrad shipping channel
ⓘ
Polish navigation fairway ⓘ |
| hasPart | Vistula Spit ⓘ |
| inflow |
Elbląg River
ⓘ
Nogat River ⓘ
linked to:
Nogat
Pasłęka River ⓘ Pregolya River ⓘ
linked to:
Pregel River
|
| length | about 90 kilometres ⓘ |
| locatedIn |
Baltic Sea basin
ⓘ
linked to:
Baltic Sea drainage basin
Kaliningrad Oblast ⓘ Warmian-Masurian Voivodeship NERFINISHED ⓘ |
| locatedInTimeZone |
Central European Time
ⓘ
Kaliningrad Time ⓘ |
| locatedOn | Baltic Sea coast ⓘ |
| maximumDepth | about 5.2 metres ⓘ |
| outflow | Baltiysk Strait ⓘ |
| partOf |
Gulf of Gdańsk region
ⓘ
linked to:
Bay of Gdańsk
|
| recognizedAs | Important Bird Area ⓘ |
| salinity | low brackish ⓘ |
| salinityRange | approximately 2–7 PSU ⓘ |
| separatedBy | Vistula Spit ⓘ |
| separatedFrom |
Gulf of Gdańsk
ⓘ
linked to:
Bay of Gdańsk
|
| shorelineLength | about 270 kilometres ⓘ |
| usedFor |
fishing
ⓘ
recreation ⓘ shipping ⓘ |
| waterType | brackish ⓘ |
| width | up to about 13 kilometres ⓘ |
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: Vistula Lagoon Description of subject: Vistula Lagoon is a shallow, brackish coastal lagoon on the Baltic Sea, shared by Poland and Russia’s Kaliningrad Oblast, known for its sandspit barrier and important bird habitats.
Referenced by (29)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Vistula Lagoon
linked to: Vistula Lagoon
linked to: Vistula Lagoon