Tappan Zee (wide section of the Hudson River)
E71724
Tappan Zee is a broad, natural widening of the Hudson River in southeastern New York, historically significant as a major navigation and crossing point north of New York City.
All labels observed (9)
How this entity was disambiguated
This entity first appeared as the object of triple T257801 — 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: Tappan Zee (wide section of the Hudson River) Context triple: [Tappan Zee Bridge, crossesSectionOf, Tappan Zee (wide section of the Hudson River)]
-
A.
Hudson River at Hadley, New York
Hudson River at Hadley, New York is the scenic stretch of the Hudson in the southern Adirondacks where it meets the Sacandaga River, known for its natural beauty and whitewater recreation.
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B.
Bronx River
The Bronx River is a freshwater river in southeastern New York that flows south through Westchester County into the Bronx, historically significant as an urban waterway and the focus of major conservation and restoration efforts.
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C.
Rondout Creek
Rondout Creek is a significant stream in southeastern New York that flows through the Catskill region and the city of Kingston before joining the Hudson River.
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D.
East River
The East River is a tidal strait in New York City that separates Manhattan from Brooklyn and Queens and serves as a major waterway spanned by several iconic bridges.
-
E.
Saw Mill River
Saw Mill River is a tributary of the Hudson River in southeastern New York, flowing through urban and suburban communities in Westchester County.
- 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: Tappan Zee (wide section of the Hudson River) Target entity description: Tappan Zee is a broad, natural widening of the Hudson River in southeastern New York, historically significant as a major navigation and crossing point north of New York City.
-
A.
Hudson River at Hadley, New York
Hudson River at Hadley, New York is the scenic stretch of the Hudson in the southern Adirondacks where it meets the Sacandaga River, known for its natural beauty and whitewater recreation.
-
B.
Bronx River
The Bronx River is a freshwater river in southeastern New York that flows south through Westchester County into the Bronx, historically significant as an urban waterway and the focus of major conservation and restoration efforts.
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C.
Rondout Creek
Rondout Creek is a significant stream in southeastern New York that flows through the Catskill region and the city of Kingston before joining the Hudson River.
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D.
East River
The East River is a tidal strait in New York City that separates Manhattan from Brooklyn and Queens and serves as a major waterway spanned by several iconic bridges.
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E.
Saw Mill River
Saw Mill River is a tributary of the Hudson River in southeastern New York, flowing through urban and suburban communities in Westchester County.
- F. None of above. chosen
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf |
geographical feature
ⓘ
river widening ⓘ section of the Hudson River ⓘ |
| adjacentTo |
Rockland County
ⓘ
surface form:
Rockland County, New York
Westchester County, New York ⓘ |
| approximateWidth | up to about 3 miles ⓘ |
| climateRegion | humid continental / humid subtropical transition zone of lower Hudson Valley ⓘ |
| connectedTo | Haverstraw Bay (Hudson River) ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| crossedBy |
Tappan Zee Bridge
ⓘ
surface form:
Governor Mario M. Cuomo Bridge
Tappan Zee Bridge ⓘ
surface form:
Tappan Zee Bridge (1955–2017)
|
| etymologyComponent |
Wappinger people
ⓘ
surface form:
"Tappan" from local Native American tribe name
"Zee" meaning "sea" in Dutch ⓘ |
| flowsTo | New York Harbor via Hudson River ⓘ |
| hasRole |
ecological habitat for estuarine species
ⓘ
transportation corridor ⓘ |
| historicalSignificance |
important river crossing north of New York City
ⓘ
major navigation point on the Hudson River ⓘ |
| historicalUse |
colonial-era river trade route
ⓘ
strategic crossing area during regional development of New York ⓘ |
| languageOfNameComponent | Dutch ⓘ |
| locatedIn |
Hudson River
ⓘ
United States of America ⓘ
surface form:
United States
southeastern New York ⓘ |
| locatedNorthOf | New York City ⓘ |
| namedAfter |
Wappinger people
ⓘ
surface form:
Tappan Native American people
|
| navigationCharacteristic | relatively wide and open reach of the Hudson River ⓘ |
| near |
Nyack, New York
ⓘ
Sleepy Hollow, New York ⓘ South Nyack, New York ⓘ Tarrytown, New York ⓘ |
| partOf |
Hudson River
ⓘ
surface form:
Hudson River estuary
Hudson River ⓘ
surface form:
Lower Hudson River
New York Harbor estuarine system ⓘ
surface form:
New York–New Jersey Harbor Estuary system
|
| partOfWaterway | Inland water route between New York Harbor and upstate New York ⓘ |
| region |
Southeastern New York
ⓘ
surface form:
Lower Hudson Valley
|
| usedFor |
commercial navigation
ⓘ
fishing ⓘ recreational boating ⓘ |
| waterBody | Atlantic Ocean watershed ⓘ |
| waterType | tidal estuarine water ⓘ |
| widerThan |
downstream Hudson River channel near the Palisades
ⓘ
upstream Hudson River channel ⓘ |
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: Tappan Zee (wide section of the Hudson River) Description of subject: Tappan Zee is a broad, natural widening of the Hudson River in southeastern New York, historically significant as a major navigation and crossing point north of New York City.
Referenced by (10)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Tappan Zee (Hudson River widening)
Essex County, New Jersey, United States
→
hasCoastlineOn
→
Tappan Zee (wide section of the Hudson River)
ⓘ
subject surface form:
Essex County, New Jersey
this entity surface form:
Hudson River (via Newark Bay shoreline)
Nyack, New York, United States of America
→
locatedNear
→
Tappan Zee (wide section of the Hudson River)
ⓘ
this entity surface form:
Tappan Zee
this entity surface form:
Hudson River at Yonkers, New York
this entity surface form:
Tappan Zee (widened section of the Hudson River)
this entity surface form:
Tappan Zee area of the Hudson River
this entity surface form:
Tappan Zee area of the Hudson River
Palisades (across the river in some segments)
→
near
→
Tappan Zee (wide section of the Hudson River)
ⓘ
subject surface form:
Palisades
this entity surface form:
Tappan Zee region of the Hudson River