Greenport Branch
E112714
The Greenport Branch is the eastern segment of the Long Island Rail Road’s Main Line that runs between Ronkonkoma and Greenport on Long Island, New York.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Greenport Branch canonical | 11 |
| Greenport Branch trains | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T955409 — 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: Greenport Branch Context triple: [Ronkonkoma Branch, hasSectionNickname, Greenport Branch]
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A.
Ronkonkoma Branch
The Ronkonkoma Branch is a major Long Island Rail Road commuter rail line running between New York City and central Long Island, serving as one of the system’s busiest and most important corridors.
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B.
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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C.
Rockport Branch
Rockport Branch is a rail line segment in Massachusetts that forms the Rockport portion of the MBTA Commuter Rail’s Newburyport/Rockport Line, serving communities on Cape Ann.
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D.
Port Jefferson Branch
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.
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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: Greenport Branch Target entity description: The Greenport Branch is the eastern segment of the Long Island Rail Road’s Main Line that runs between Ronkonkoma and Greenport on Long Island, New York.
-
A.
Ronkonkoma Branch
The Ronkonkoma Branch is a major Long Island Rail Road commuter rail line running between New York City and central Long Island, serving as one of the system’s busiest and most important corridors.
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B.
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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C.
Rockport Branch
Rockport Branch is a rail line segment in Massachusetts that forms the Rockport portion of the MBTA Commuter Rail’s Newburyport/Rockport Line, serving communities on Cape Ann.
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D.
Port Jefferson Branch
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.
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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 (43)
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: Greenport Branch Description of subject: The Greenport Branch is the eastern segment of the Long Island Rail Road’s Main Line that runs between Ronkonkoma and Greenport on Long Island, New York.
Referenced by (12)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
LIRR C3 coaches
linked to: Greenport Branch
subject linked to:
Long Island Rail Road Ronkonkoma station