Triple
T1274660
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Keystone Corridor |
E15785
|
entity |
| Predicate | hasStation |
P35
|
FINISHED |
| Object |
Lancaster Station
Lancaster Station is an Amtrak passenger rail station in Lancaster, Pennsylvania, serving intercity and regional trains along the Keystone Corridor.
|
E224838
|
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: Lancaster Station | Statement: [Keystone Corridor, hasStation, Lancaster Station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Lancaster Station Context triple: [Keystone Corridor, hasStation, Lancaster Station]
-
A.
Butler station
Butler station is a small MBTA light rail stop on Boston’s historic Mattapan trolley line in the Dorchester/Mattapan area.
-
B.
Baldwin station
Baldwin station is a Long Island Rail Road commuter rail stop located in the hamlet of Baldwin in Nassau County, New York.
-
C.
Milton station
Milton station is a light rail stop on the MBTA's Mattapan Trolley line in Milton, Massachusetts, serving local commuters on the Red Line's historic trolley branch.
-
D.
Winchester station
Winchester station is a light rail stop in Campbell, California, serving as the western terminus of the Santa Clara Valley Transportation Authority (VTA) Green Line.
-
E.
Brunswick station
Brunswick station is a passenger rail station in Brunswick, Maryland, serving as the western endpoint of MARC's Brunswick Line commuter service.
- 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: Lancaster Station Triple: [Keystone Corridor, hasStation, Lancaster Station]
Generated description
Lancaster Station is an Amtrak passenger rail station in Lancaster, Pennsylvania, serving intercity and regional trains along the Keystone Corridor.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Lancaster Station Target entity description: Lancaster Station is an Amtrak passenger rail station in Lancaster, Pennsylvania, serving intercity and regional trains along the Keystone Corridor.
-
A.
Butler station
Butler station is a small MBTA light rail stop on Boston’s historic Mattapan trolley line in the Dorchester/Mattapan area.
-
B.
Baldwin station
Baldwin station is a Long Island Rail Road commuter rail stop located in the hamlet of Baldwin in Nassau County, New York.
-
C.
Milton station
Milton station is a light rail stop on the MBTA's Mattapan Trolley line in Milton, Massachusetts, serving local commuters on the Red Line's historic trolley branch.
-
D.
Winchester station
Winchester station is a light rail stop in Campbell, California, serving as the western terminus of the Santa Clara Valley Transportation Authority (VTA) Green Line.
-
E.
Brunswick station
Brunswick station is a passenger rail station in Brunswick, Maryland, serving as the western endpoint of MARC's Brunswick Line commuter service.
- 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_69a4935a94308190bb92555b79032824 |
completed | March 1, 2026, 7:28 p.m. |
| NER | Named-entity recognition | batch_69a4c06ee22081908141868b57596e35 |
completed | March 1, 2026, 10:40 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ae0a9afd688190a69c79a0b6c5e872 |
completed | March 8, 2026, 11:47 p.m. |
| NEDg | Description generation | batch_69ae0b62dd048190acf6f9d76e5bfd47 |
completed | March 8, 2026, 11:50 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69ae0be695cc819093c237e19de9b731 |
completed | March 8, 2026, 11:53 p.m. |
Created at: March 1, 2026, 7:50 p.m.