Triple
T9810778
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | New Haven Line at Grand Central Terminal |
E238263
|
entity |
| Predicate | usesRollingStock |
P5426
|
FINISHED |
| Object | M4 railcar |
E597589
|
NE FINISHED |
How this triple was built (2 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: M4 railcar | Statement: [New Haven Line at Grand Central Terminal, usesRollingStock, M4 railcar]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: M4 railcar Context triple: [New Haven Line at Grand Central Terminal, usesRollingStock, M4 railcar]
-
A.
M4 railcar
chosen
The M4 railcar is an electric multiple-unit passenger train used in commuter rail service, notably on lines such as the New Haven Line.
-
B.
M2 railcar
The M2 railcar is an electric multiple-unit passenger train used by commuter rail services in the northeastern United States, particularly known for operating on the New Haven Line.
-
C.
M6 railcar
The M6 railcar is an electric multiple unit commuter train used by Metro-North Railroad, known for serving the New Haven Line between New York and Connecticut.
-
D.
Endeavour railcar
The Endeavour railcar is a class of diesel multiple unit passenger trains operating regional and intercity services in New South Wales, Australia.
-
E.
M3 electric multiple unit
The M3 electric multiple unit is a class of electric commuter rail cars used by the Long Island Rail Road for high-capacity passenger service in the New York metropolitan area.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (3 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_69ca84defac48190abc1148804f184c1 |
completed | March 30, 2026, 2:12 p.m. |
| NER | Named-entity recognition | batch_69cdb2214a7c8190b516acf64e2b85db |
completed | April 2, 2026, 12:02 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69d1e41725948190a40ddcf9552e9bf1 |
completed | April 5, 2026, 4:24 a.m. |
Created at: March 30, 2026, 8:30 p.m.