Triple
T9702895
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | East Side Access |
E234821
|
entity |
| Predicate | primaryRollingStock |
P1305
|
FINISHED |
| Object |
MTA LIRR M9
The MTA LIRR M9 is a modern electric multiple-unit railcar fleet used by the Long Island Rail Road for high-capacity, commuter rail service.
|
E818581
|
NE FINISHED |
How this triple was built (4 steps)
Every LLM step that produced this triple, in pipeline order — named-entity classification, the disambiguation choices (the exact options shown, with the pick highlighted), and the generated description. The batch + timestamp of each is in the Provenance table below.
NER
Named-entity recognition
gpt-5-mini
Instruction
Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).
Input
Phrase: MTA LIRR M9 | Statement: [East Side Access, primaryRollingStock, MTA LIRR M9]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: MTA LIRR M9 Context triple: [East Side Access, primaryRollingStock, MTA LIRR M9]
-
A.
MTA LIRR M7
The MTA LIRR M7 is a fleet of electric multiple-unit commuter rail cars used by the Long Island Rail Road for high-frequency passenger service in the New York metropolitan area.
-
B.
LIRR Babylon Branch
The LIRR Babylon Branch is a major electrified commuter rail line on the Long Island Rail Road that runs from Jamaica in Queens through Nassau County to Babylon in Suffolk County.
-
C.
Long Island Rail Road
Long Island Rail Road is a major commuter rail system serving Long Island and parts of New York City, known as one of the busiest and oldest railroads in the United States.
-
D.
LIRR Port Jefferson Branch
The LIRR Port Jefferson Branch is a Long Island Rail Road commuter rail line in New York that runs from Hicksville through northern Long Island to the village of Port Jefferson.
-
E.
LIRR Atlantic Terminal service
LIRR Atlantic Terminal service is a Long Island Rail Road commuter rail service that operates between Atlantic Terminal in Brooklyn and points on the railroad’s network, providing a key transit link into downtown Brooklyn.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg
Description generation
gpt-5.1
Instruction
Generate a one-sentence description of the target entity. You are given a context triple in the form (subject, predicate, object), where the object is the target entity. # Instructions Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. Avoid repeating the information from the triple, unless really essential. # Response Format Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: MTA LIRR M9 Triple: [East Side Access, primaryRollingStock, MTA LIRR M9]
Generated description
The MTA LIRR M9 is a modern electric multiple-unit railcar fleet used by the Long Island Rail Road for high-capacity, commuter rail service.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: MTA LIRR M9 Target entity description: The MTA LIRR M9 is a modern electric multiple-unit railcar fleet used by the Long Island Rail Road for high-capacity, commuter rail service.
-
A.
MTA LIRR M7
The MTA LIRR M7 is a fleet of electric multiple-unit commuter rail cars used by the Long Island Rail Road for high-frequency passenger service in the New York metropolitan area.
-
B.
LIRR Babylon Branch
The LIRR Babylon Branch is a major electrified commuter rail line on the Long Island Rail Road that runs from Jamaica in Queens through Nassau County to Babylon in Suffolk County.
-
C.
Long Island Rail Road
Long Island Rail Road is a major commuter rail system serving Long Island and parts of New York City, known as one of the busiest and oldest railroads in the United States.
-
D.
LIRR Port Jefferson Branch
The LIRR Port Jefferson Branch is a Long Island Rail Road commuter rail line in New York that runs from Hicksville through northern Long Island to the village of Port Jefferson.
-
E.
LIRR Atlantic Terminal service
LIRR Atlantic Terminal service is a Long Island Rail Road commuter rail service that operates between Atlantic Terminal in Brooklyn and points on the railroad’s network, providing a key transit link into downtown Brooklyn.
- F. None of above. chosen
Provenance (5 batches)
The batch behind each pipeline step, in order, with when it ran. Timestamps are batch-level — stages were processed in waves, so the object chain (NER → NED1 → NEDg → NED2) reads in order, but predicate / elicitation batches can sit in a different wave.
| Step | Stage | Batch ID | Status | When |
|---|---|---|---|---|
| creating | Elicitation | batch_69ca84cc78808190a56f3402b7c139a7 |
completed | March 30, 2026, 2:12 p.m. |
| NER | Named-entity recognition | batch_69cd9d7283188190bd50e18f643ad0d3 |
completed | April 1, 2026, 10:34 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69d1af93b76c81908377f17956fb86b1 |
completed | April 5, 2026, 12:40 a.m. |
| NEDg | Description generation | batch_69d1b08ba1f48190830852f9d60e3368 |
completed | April 5, 2026, 12:44 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69d1b124659481909e7a2ecaf01d8a50 |
completed | April 5, 2026, 12:47 a.m. |
Created at: March 30, 2026, 8:18 p.m.