Amtrak Thames River Bridge
E692471
The Amtrak Thames River Bridge is a movable railroad bridge in Connecticut that carries Amtrak trains across the Thames River between New London and Groton.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Amtrak Thames River Bridge canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T6425468 — 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: Amtrak Thames River Bridge Context triple: [Thames River (Connecticut), hasBridge, Amtrak Thames River Bridge]
-
A.
New York Connecting Railroad Bridge
The New York Connecting Railroad Bridge, better known as the Hell Gate Bridge, is a massive steel arch railroad bridge in New York City that carries trains over the Hell Gate section of the East River between Queens and the Bronx.
-
B.
Albany–Rensselaer rail bridge
The Albany–Rensselaer rail bridge is a major railroad bridge in New York State that carries rail traffic between Albany and Rensselaer across the Hudson River.
-
C.
CSX Railroad Bridge
The CSX Railroad Bridge is a freight rail bridge in Washington, D.C., carrying CSX Transportation trains across the Anacostia River as part of a major East Coast rail corridor.
-
D.
Poughkeepsie Railroad Bridge
The Poughkeepsie Railroad Bridge is a historic steel cantilever bridge over the Hudson River, now a popular pedestrian walkway and scenic landmark in Poughkeepsie, New York.
-
E.
Hudson Memorial Bridge
The Hudson Memorial Bridge is a major highway bridge spanning the Tennessee River in Decatur, Alabama, serving as a key transportation link in the 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: Amtrak Thames River Bridge Target entity description: The Amtrak Thames River Bridge is a movable railroad bridge in Connecticut that carries Amtrak trains across the Thames River between New London and Groton.
-
A.
New York Connecting Railroad Bridge
The New York Connecting Railroad Bridge, better known as the Hell Gate Bridge, is a massive steel arch railroad bridge in New York City that carries trains over the Hell Gate section of the East River between Queens and the Bronx.
-
B.
Albany–Rensselaer rail bridge
The Albany–Rensselaer rail bridge is a major railroad bridge in New York State that carries rail traffic between Albany and Rensselaer across the Hudson River.
-
C.
CSX Railroad Bridge
The CSX Railroad Bridge is a freight rail bridge in Washington, D.C., carrying CSX Transportation trains across the Anacostia River as part of a major East Coast rail corridor.
-
D.
Poughkeepsie Railroad Bridge
The Poughkeepsie Railroad Bridge is a historic steel cantilever bridge over the Hudson River, now a popular pedestrian walkway and scenic landmark in Poughkeepsie, New York.
-
E.
Hudson Memorial Bridge
The Hudson Memorial Bridge is a major highway bridge spanning the Tennessee River in Decatur, Alabama, serving as a key transportation link in the region.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
movable railroad bridge
ⓘ
truss bridge ⓘ vertical-lift bridge ⓘ |
| allows | passage of ships on the Thames River when raised ⓘ |
| carries |
Amtrak trains
ⓘ
railroad traffic ⓘ |
| connects |
Groton, Connecticut
NERFINISHED
ⓘ
New London, Connecticut NERFINISHED ⓘ |
| constructionMaterial | steel ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| crosses | Thames River NERFINISHED ⓘ |
| designedFor | high-speed passenger rail ⓘ |
| hasDesign | lift-span ⓘ |
| hasFunction |
to allow rail traffic to cross the Thames River
ⓘ
to provide navigational clearance for marine traffic via movable span ⓘ |
| hasMovableSpan | vertical lift span ⓘ |
| hasNumberOfTracks | 2 ⓘ |
| hasOwnerType | federal government corporation (via Amtrak) ⓘ |
| hasSpanType | movable span ⓘ |
| hasStrategicImportance | key rail crossing on the Northeast Corridor in southeastern Connecticut ⓘ |
| hasTraffic |
freight trains
ⓘ
passenger trains ⓘ |
| isOnWaterway | navigable section of the Thames River ⓘ |
| locatedIn |
Connecticut
ⓘ
United States of America ⓘ
surface form:
United States
|
| locatedInWaterBody | Thames River estuary NERFINISHED ⓘ |
| locatedNear | New London Union Station NERFINISHED ⓘ |
| maintainedBy | Amtrak NERFINISHED ⓘ |
| municipalityOnEastBank | Town of Groton NERFINISHED ⓘ |
| municipalityOnWestBank | City of New London NERFINISHED ⓘ |
| nearbyCity | New London NERFINISHED ⓘ |
| nearbyTown | Groton NERFINISHED ⓘ |
| opened | 1919 ⓘ |
| owner | Amtrak NERFINISHED ⓘ |
| partOf | Northeast Corridor NERFINISHED ⓘ |
| partOfRoute | rail line between New Haven and Boston ⓘ |
| railwayLine | Amtrak Northeast Corridor main line NERFINISHED ⓘ |
| region | New England NERFINISHED ⓘ |
| replaced | earlier swing-span railroad bridge over the Thames River ⓘ |
| state | Connecticut ⓘ |
| structureType | railway bridge ⓘ |
| usedBy |
Amtrak Acela
NERFINISHED
ⓘ
Amtrak Northeast Regional NERFINISHED ⓘ Amtrak freight operations (via trackage rights) ⓘ |
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: Amtrak Thames River Bridge Description of subject: The Amtrak Thames River Bridge is a movable railroad bridge in Connecticut that carries Amtrak trains across the Thames River between New London and Groton.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Thames River (Connecticut)