Triple
T1078154
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Superliner bi-level cars |
E23884
|
entity |
| Predicate | notUsedOn |
P7974
|
FINISHED |
| Object |
Northeast Corridor electrified services
Northeast Corridor electrified services are high-speed, overhead-wire-powered passenger rail operations along the busy Boston–Washington, D.C. corridor, primarily using electric locomotives and electric multiple units rather than bi-level Superliner cars.
|
E123485
|
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: Northeast Corridor electrified services | Statement: [Superliner bi-level cars, notUsedOn, Northeast Corridor electrified services]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Northeast Corridor electrified services Context triple: [Superliner bi-level cars, notUsedOn, Northeast Corridor electrified services]
-
A.
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.
-
B.
Mattapan High-Speed Line
The Mattapan High-Speed Line is a light rail transit line in Boston, Massachusetts, operating historic trolley cars between Ashmont and Mattapan stations as part of the MBTA system.
-
C.
Sounder commuter rail
Sounder commuter rail is a regional passenger train service in the Seattle area that connects downtown Seattle with surrounding communities in Pierce and Snohomish counties.
-
D.
MBTA Mattapan High-Speed Line
The MBTA Mattapan High-Speed Line is a light rail trolley service in the Boston area that operates historic PCC streetcars between Ashmont Station in Dorchester and Mattapan, serving communities including Milton, Massachusetts.
-
E.
U.S. intercity passenger rail network
The U.S. intercity passenger rail network is a nationwide system of medium- and long-distance train routes, primarily operated by Amtrak, that connects major cities and regions across the United States.
- 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: Northeast Corridor electrified services Triple: [Superliner bi-level cars, notUsedOn, Northeast Corridor electrified services]
Generated description
Northeast Corridor electrified services are high-speed, overhead-wire-powered passenger rail operations along the busy Boston–Washington, D.C. corridor, primarily using electric locomotives and electric multiple units rather than bi-level Superliner cars.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Northeast Corridor electrified services Target entity description: Northeast Corridor electrified services are high-speed, overhead-wire-powered passenger rail operations along the busy Boston–Washington, D.C. corridor, primarily using electric locomotives and electric multiple units rather than bi-level Superliner cars.
-
A.
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.
-
B.
Mattapan High-Speed Line
The Mattapan High-Speed Line is a light rail transit line in Boston, Massachusetts, operating historic trolley cars between Ashmont and Mattapan stations as part of the MBTA system.
-
C.
Sounder commuter rail
Sounder commuter rail is a regional passenger train service in the Seattle area that connects downtown Seattle with surrounding communities in Pierce and Snohomish counties.
-
D.
MBTA Mattapan High-Speed Line
The MBTA Mattapan High-Speed Line is a light rail trolley service in the Boston area that operates historic PCC streetcars between Ashmont Station in Dorchester and Mattapan, serving communities including Milton, Massachusetts.
-
E.
U.S. intercity passenger rail network
The U.S. intercity passenger rail network is a nationwide system of medium- and long-distance train routes, primarily operated by Amtrak, that connects major cities and regions across the United States.
- 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_69a493f1ddf48190a99d54b00e99f8ce |
completed | March 1, 2026, 7:30 p.m. |
| NER | Named-entity recognition | batch_69a4b94288d88190aae4fb86236c0702 |
completed | March 1, 2026, 10:10 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ac42abc7a08190a34f5b2d393db30e |
completed | March 7, 2026, 3:22 p.m. |
| NEDg | Description generation | batch_69ac4336328481908aba0260c6504a1a |
completed | March 7, 2026, 3:24 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69ac43b578d48190af1478c9f6c8f712 |
completed | March 7, 2026, 3:26 p.m. |
Created at: March 1, 2026, 7:42 p.m.