New Haven–Springfield Line
E134127
The New Haven–Springfield Line is a key passenger rail corridor in the northeastern United States connecting New Haven, Connecticut, with Springfield, Massachusetts, and serving both intercity and commuter rail services.
All labels observed (15)
How this entity was disambiguated
This entity first appeared as the object of triple T1121982 — 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: New Haven–Springfield Line Context triple: [Amtrak Northeast Regional, railwayLineUsed, New Haven–Springfield Line]
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A.
Connecticut River Line
The Connecticut River Line is a historic railroad corridor running along the Connecticut River in New England, long used for passenger and freight service connecting communities in Massachusetts, Vermont, and New Hampshire.
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B.
Boston–Portland main line
The Boston–Portland main line is a historic New England railroad corridor connecting Boston, Massachusetts, with Portland, Maine, that has long served as a key passenger and freight route along the region’s coast.
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C.
Boston–Concord main line
The Boston–Concord main line was a principal intercity rail corridor in New England that connected Boston, Massachusetts with Concord, New Hampshire, serving as a key route for the Boston and Maine Railroad.
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D.
New York, New Haven and Hartford Railroad
The New York, New Haven and Hartford Railroad was a major railroad in the northeastern United States that operated extensive passenger and freight services across New England and into New York City during the late 19th and early 20th centuries.
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E.
White Plains Road Line
The White Plains Road Line is a major New York City Subway route in the Bronx, primarily served by the 2 and 5 trains and running along White Plains Road.
- 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: New Haven–Springfield Line Target entity description: The New Haven–Springfield Line is a key passenger rail corridor in the northeastern United States connecting New Haven, Connecticut, with Springfield, Massachusetts, and serving both intercity and commuter rail services.
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A.
Connecticut River Line
The Connecticut River Line is a historic railroad corridor running along the Connecticut River in New England, long used for passenger and freight service connecting communities in Massachusetts, Vermont, and New Hampshire.
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B.
Boston–Portland main line
The Boston–Portland main line is a historic New England railroad corridor connecting Boston, Massachusetts, with Portland, Maine, that has long served as a key passenger and freight route along the region’s coast.
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C.
Boston–Concord main line
The Boston–Concord main line was a principal intercity rail corridor in New England that connected Boston, Massachusetts with Concord, New Hampshire, serving as a key route for the Boston and Maine Railroad.
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D.
New York, New Haven and Hartford Railroad
The New York, New Haven and Hartford Railroad was a major railroad in the northeastern United States that operated extensive passenger and freight services across New England and into New York City during the late 19th and early 20th centuries.
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E.
White Plains Road Line
The White Plains Road Line is a major New York City Subway route in the Bronx, primarily served by the 2 and 5 trains and running along White Plains Road.
- F. None of above. chosen
Statements (47)
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: New Haven–Springfield Line Description of subject: The New Haven–Springfield Line is a key passenger rail corridor in the northeastern United States connecting New Haven, Connecticut, with Springfield, Massachusetts, and serving both intercity and commuter rail services.
Referenced by (41)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Northeast Corridor to Springfield Line
this entity surface form:
Hartford Line
this entity surface form:
New Haven–Hartford–Springfield corridor
this entity surface form:
Amtrak Hartford Line
this entity surface form:
Amtrak New Haven–Springfield Corridor
this entity surface form:
Amtrak Hartford Line
this entity surface form:
Amtrak Hartford Line
this entity surface form:
Hartford Line
this entity surface form:
New Haven–Hartford–Springfield rail corridor
this entity surface form:
Hartford Line
this entity surface form:
Hartford Line
this entity surface form:
New Haven–Springfield rail corridor
this entity surface form:
Hartford Line corridor
this entity surface form:
Hartford Line
this entity surface form:
Amtrak New Haven–Springfield Line
this entity surface form:
Amtrak Hartford Line service
this entity surface form:
New Haven–Springfield corridor
this entity surface form:
Hartford Line
this entity surface form:
Hartford Line
this entity surface form:
Amtrak Hartford Line service
this entity surface form:
Amtrak New Haven–Springfield route
this entity surface form:
Hartford Line
this entity surface form:
Hartford Line corridor
this entity surface form:
Amtrak Hartford Line services
this entity surface form:
Amtrak New Haven–Springfield Line
this entity surface form:
Amtrak Hartford Line services
this entity surface form:
New Haven–Springfield passenger service
this entity surface form:
Amtrak New Haven–Springfield Line