Long Island Rail Road rolling stock
E515218
Long Island Rail Road rolling stock comprises the various passenger train cars and electric multiple units used to operate commuter rail services across Long Island and into New York City.
All labels observed (2)
| Label | Occurrences |
|---|---|
| LIRR electric multiple units | 1 |
| Long Island Rail Road rolling stock canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5378708 — 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: Long Island Rail Road rolling stock Context triple: [M3 electric multiple unit, partOf, Long Island Rail Road rolling stock]
-
A.
LIRR P72 coaches
The LIRR P72 coaches were a series of diesel-hauled passenger railcars used by the Long Island Rail Road for commuter service in the mid-to-late 20th century.
-
B.
LIRR DM30AC diesel-electric locomotive
The LIRR DM30AC is a dual-mode diesel-electric locomotive used by the Long Island Rail Road to haul passenger trains between non-electrified territory and New York City terminals.
-
C.
LIRR C3 coaches
LIRR C3 coaches are bi-level passenger railcars used by the Long Island Rail Road to provide high-capacity commuter service, particularly on routes requiring diesel locomotives.
-
D.
Long Island Rail Road (controlling interest for many years)
The Long Island Rail Road is a major commuter rail system serving Long Island and connecting it to New York City, recognized as one of the busiest and oldest railroads in the United States.
-
E.
Long Island Rail Road branches
Long Island Rail Road branches are the multiple commuter rail lines radiating from New York City across Long Island, serving as the primary rail network for Nassau and Suffolk counties.
- 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: Long Island Rail Road rolling stock Target entity description: Long Island Rail Road rolling stock comprises the various passenger train cars and electric multiple units used to operate commuter rail services across Long Island and into New York City.
-
A.
LIRR P72 coaches
The LIRR P72 coaches were a series of diesel-hauled passenger railcars used by the Long Island Rail Road for commuter service in the mid-to-late 20th century.
-
B.
LIRR DM30AC diesel-electric locomotive
The LIRR DM30AC is a dual-mode diesel-electric locomotive used by the Long Island Rail Road to haul passenger trains between non-electrified territory and New York City terminals.
-
C.
LIRR C3 coaches
LIRR C3 coaches are bi-level passenger railcars used by the Long Island Rail Road to provide high-capacity commuter service, particularly on routes requiring diesel locomotives.
-
D.
Long Island Rail Road (controlling interest for many years)
The Long Island Rail Road is a major commuter rail system serving Long Island and connecting it to New York City, recognized as one of the busiest and oldest railroads in the United States.
-
E.
Long Island Rail Road branches
Long Island Rail Road branches are the multiple commuter rail lines radiating from New York City across Long Island, serving as the primary rail network for Nassau and Suffolk counties.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
commuter rail rolling stock
ⓘ
railway rolling stock fleet ⓘ |
| brakeType | air brake ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| couplerType | Janney coupler NERFINISHED ⓘ |
| depotLocation |
Hillside Facility
NERFINISHED
ⓘ
Morris Park Yard NERFINISHED ⓘ Port Washington Yard NERFINISHED ⓘ Ronkonkoma Yard NERFINISHED ⓘ West Side Yard NERFINISHED ⓘ |
| electrificationCollectionMethod | contact shoe ⓘ |
| electrificationSystemServed | 750 V DC third rail ⓘ |
| gauge | standard gauge ⓘ |
| gaugeValue | 1435 mm ⓘ |
| hasAccessibilityFeature | ADA-compliant boarding on modern equipment ⓘ |
| hasCarConfiguration |
bilevel diesel coaches
ⓘ
single-level EMU cars ⓘ |
| historicallyIncludedRollingStockSeries |
FA cab car conversions
ⓘ
G5s steam locomotive-hauled coaches ⓘ MP54 electric multiple unit NERFINISHED ⓘ |
| includesRollingStockSeries |
C3 bilevel coach
NERFINISHED
ⓘ
DE30AC locomotive NERFINISHED ⓘ DM30AC locomotive NERFINISHED ⓘ M1 railcar NERFINISHED ⓘ M3 railcar NERFINISHED ⓘ M7 railcar NERFINISHED ⓘ M9 railcar NERFINISHED ⓘ |
| includesRollingStockType |
cab car
ⓘ
diesel multiple unit ⓘ electric multiple unit ⓘ locomotive-hauled passenger car ⓘ push–pull coach ⓘ |
| networkTypeServed | commuter rail network ⓘ |
| operator | Long Island Rail Road ⓘ |
| owner | Metropolitan Transportation Authority ⓘ |
| primaryCityServed | New York City NERFINISHED ⓘ |
| primaryRegionServed | Long Island NERFINISHED ⓘ |
| safetySystem |
automatic train control on some lines
ⓘ
cab signaling on electrified territory ⓘ |
| serviceArea |
Brooklyn, New York City
NERFINISHED
ⓘ
Manhattan, New York City NERFINISHED ⓘ Nassau County, New York NERFINISHED ⓘ Queens, New York City NERFINISHED ⓘ Suffolk County, New York NERFINISHED ⓘ |
| serviceType |
commuter service
ⓘ
suburban service ⓘ |
| usedFor |
commuter rail operations
ⓘ
passenger transport ⓘ |
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: Long Island Rail Road rolling stock Description of subject: Long Island Rail Road rolling stock comprises the various passenger train cars and electric multiple units used to operate commuter rail services across Long Island and into New York City.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
LIRR electric multiple units