Triple
T54421
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Amtrak |
E1072
|
entity |
| Predicate | hasServiceOnCorridor |
P2566
|
FINISHED |
| Object | Northeast Corridor |
E2775
|
NE FINISHED |
How this triple was built (3 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: Northeast Corridor | Statement: [Amtrak, hasServiceOnCorridor, Northeast Corridor]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Northeast Corridor Context triple: [Amtrak, hasServiceOnCorridor, Northeast Corridor]
-
A.
Northeast Corridor
chosen
The Northeast Corridor is the busiest passenger rail line in the United States, running primarily Amtrak and commuter trains along the urbanized spine of the East Coast between major cities such as Washington, D.C., Philadelphia, New York City, and Boston.
-
B.
Amtrak Empire Corridor
The Amtrak Empire Corridor is a major passenger rail route in New York State that connects New York City with Albany and other upstate cities along the Hudson River and beyond.
-
C.
Virginia Railway Express
Virginia Railway Express is a commuter rail service that connects Northern Virginia suburbs with Washington, D.C., primarily serving daily work commuters.
-
D.
Washington Metro
Washington Metro is the rapid transit system serving the Washington, D.C. metropolitan area, known for its extensive rail network connecting the city with its suburbs in Maryland and Virginia.
-
E.
MBTA Fitchburg Line
The MBTA Fitchburg Line is a commuter rail route in the Greater Boston area that runs between Boston and Fitchburg, serving numerous suburban communities along the way.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: hasServiceOnCorridor Context triple: [Amtrak, hasServiceOnCorridor, Northeast Corridor]
-
A.
hasEntranceOn
Indicates that one entity’s entrance or access point is located on or faces a specified side, boundary, or feature of another entity.
-
B.
hasServiceType
Indicates that an entity is associated with or categorized by a particular type of service.
-
C.
servedByService
Indicates that something is provided, handled, or fulfilled by a particular service.
-
D.
enteredService
Indicates that an entity began active use or operation at a specific time or in a specific context.
-
E.
hasFaregates
Indicates that an entity is equipped with or contains faregates used to control or validate access, typically for paid entry.
- 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_69a248adc5b48190aa8db9fb092fb28a |
completed | Feb. 28, 2026, 1:45 a.m. |
| NER | Named-entity recognition | batch_69a24b3a9e848190b80de3c858678b3a |
completed | Feb. 28, 2026, 1:56 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69a2623ecff48190bc390f8d418b97ec |
completed | Feb. 28, 2026, 3:34 a.m. |
| PD | Predicate disambiguation | batch_69a24ac52fb08190aa7c38f83434f795 |
completed | Feb. 28, 2026, 1:54 a.m. |
| PDg | Predicate description generation | batch_69a24b39eef081909cec4333f2b25513 |
completed | Feb. 28, 2026, 1:56 a.m. |
Created at: Feb. 28, 2026, 1:50 a.m.