Northport Avenue (Ronkonkoma) yard
E112715
Northport Avenue (Ronkonkoma) Yard is a Long Island Rail Road facility in Ronkonkoma used primarily for storing and servicing trains operating on the Ronkonkoma Branch.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Northport Avenue (Ronkonkoma) yard canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T955429 — 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: Northport Avenue (Ronkonkoma) yard Context triple: [Ronkonkoma Branch, hasStation, Northport Avenue (Ronkonkoma) yard]
-
A.
Coney Island Yard
Coney Island Yard is one of the largest New York City Subway maintenance and storage facilities, serving multiple lines in Brooklyn.
-
B.
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.
-
C.
Long Island Rail Road Port Jefferson Branch
The Long Island Rail Road Port Jefferson Branch is a commuter rail line on Long Island that runs between western terminals in New York City and the village of Port Jefferson, serving numerous communities along the island’s north shore.
-
D.
Long Island Rail Road West Hempstead Branch
The Long Island Rail Road West Hempstead Branch is a commuter rail line in Nassau County, New York, providing service between West Hempstead and the broader LIRR network.
-
E.
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.
- 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: Northport Avenue (Ronkonkoma) yard Target entity description: Northport Avenue (Ronkonkoma) Yard is a Long Island Rail Road facility in Ronkonkoma used primarily for storing and servicing trains operating on the Ronkonkoma Branch.
-
A.
Coney Island Yard
Coney Island Yard is one of the largest New York City Subway maintenance and storage facilities, serving multiple lines in Brooklyn.
-
B.
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.
-
C.
Long Island Rail Road Port Jefferson Branch
The Long Island Rail Road Port Jefferson Branch is a commuter rail line on Long Island that runs between western terminals in New York City and the village of Port Jefferson, serving numerous communities along the island’s north shore.
-
D.
Long Island Rail Road West Hempstead Branch
The Long Island Rail Road West Hempstead Branch is a commuter rail line in Nassau County, New York, providing service between West Hempstead and the broader LIRR network.
-
E.
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.
- F. None of above. chosen
Statements (23)
| Predicate | Object |
|---|---|
| instanceOf |
Long Island Rail Road facility
ⓘ
rail yard ⓘ |
| adjacentTo |
Ronkonkoma Branch
ⓘ
surface form:
Ronkonkoma Branch tracks
|
| country |
United States of America
ⓘ
surface form:
United States
|
| electrification | third rail (LIRR standard) ⓘ |
| hasFunction |
equipment layup
ⓘ
light maintenance ⓘ staging of trainsets ⓘ |
| locatedIn |
New York
ⓘ
surface form:
New York State
Ronkonkoma ⓘ
surface form:
Ronkonkoma, New York
Suffolk County, New York ⓘ Town of Islip, New York ⓘ |
| operator | Long Island Rail Road ⓘ |
| ownedBy | Metropolitan Transportation Authority ⓘ |
| partOf |
Long Island Rail Road
ⓘ
surface form:
Long Island Rail Road infrastructure
|
| primaryUse |
train servicing
ⓘ
train storage ⓘ |
| railGauge | standard gauge ⓘ |
| railwayNetwork | Long Island Rail Road ⓘ |
| servesLine | Ronkonkoma Branch ⓘ |
| servesStationArea | Ronkonkoma station vicinity ⓘ |
| usedFor |
servicing trains operating on the Ronkonkoma Branch
ⓘ
storing trains operating on the Ronkonkoma Branch ⓘ |
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: Northport Avenue (Ronkonkoma) yard Description of subject: Northport Avenue (Ronkonkoma) Yard is a Long Island Rail Road facility in Ronkonkoma used primarily for storing and servicing trains operating on the Ronkonkoma Branch.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.