Port Jefferson Branch
E78791
The Port Jefferson Branch is a Long Island Rail Road commuter rail line in New York that runs from Hicksville to Port Jefferson, serving communities along the island’s North Shore.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Port Jefferson Branch canonical | 41 |
| Port Jefferson Branch right-of-way | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T629252 — 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: Port Jefferson Branch Context triple: [Long Island Rail Road Main Line, junctionWith, Port Jefferson Branch]
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A.
Montauk Branch
The Montauk Branch is a major Long Island Rail Road route running between New York City and the eastern tip of Long Island, serving numerous communities along the island’s South Shore.
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B.
Port Washington Branch
The Port Washington Branch is a commuter rail line of the Long Island Rail Road in New York that runs between Manhattan and Port Washington in Nassau County.
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C.
Oyster Bay Branch
The Oyster Bay Branch is a commuter rail line of the Long Island Rail Road in New York that runs through Nassau County to the village of Oyster Bay.
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D.
Centerport, New York
Centerport, New York is a hamlet and coastal community on Long Island’s North Shore known for its scenic harbor, affluent residential character, and location within the town of Huntington.
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E.
Hempstead Branch
The Hempstead Branch is a commuter rail line of the Long Island Rail Road in New York, serving communities between Hempstead and points in Queens and Manhattan.
- 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: Port Jefferson Branch Target entity description: The Port Jefferson Branch is a Long Island Rail Road commuter rail line in New York that runs from Hicksville to Port Jefferson, serving communities along the island’s North Shore.
-
A.
Montauk Branch
The Montauk Branch is a major Long Island Rail Road route running between New York City and the eastern tip of Long Island, serving numerous communities along the island’s South Shore.
-
B.
Port Washington Branch
The Port Washington Branch is a commuter rail line of the Long Island Rail Road in New York that runs between Manhattan and Port Washington in Nassau County.
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C.
Oyster Bay Branch
The Oyster Bay Branch is a commuter rail line of the Long Island Rail Road in New York that runs through Nassau County to the village of Oyster Bay.
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D.
Centerport, New York
Centerport, New York is a hamlet and coastal community on Long Island’s North Shore known for its scenic harbor, affluent residential character, and location within the town of Huntington.
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E.
Hempstead Branch
The Hempstead Branch is a commuter rail line of the Long Island Rail Road in New York, serving communities between Hempstead and points in Queens and Manhattan.
- F. None of above. chosen
Statements (48)
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: Port Jefferson Branch Description of subject: The Port Jefferson Branch is a Long Island Rail Road commuter rail line in New York that runs from Hicksville to Port Jefferson, serving communities along the island’s North Shore.
Referenced by (43)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Main Line (Long Island Rail Road)
this entity surface form:
Port Jefferson Branch right-of-way
subject surface form:
LIRR C3 coach
this entity surface form:
Port Jefferson Branch right-of-way
subject surface form:
Northport station