Triple
T2687936
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Waban station |
E57528
|
entity |
| Predicate | formerServiceType |
P16344
|
FINISHED |
| Object |
Boston and Albany Railroad commuter rail station
The Boston and Albany Railroad commuter rail station was a former suburban passenger rail stop that once served commuters traveling between Boston and its western suburbs along the historic Boston and Albany line.
|
E287578
|
NE FINISHED |
How this triple was built (5 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: Boston and Albany Railroad commuter rail station | Statement: [Waban station, formerServiceType, Boston and Albany Railroad commuter rail station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Boston and Albany Railroad commuter rail station Context triple: [Waban station, formerServiceType, Boston and Albany Railroad commuter rail station]
-
A.
Fitchburg station
Fitchburg station is a commuter rail stop in Fitchburg, Massachusetts, serving as a terminus on the MBTA Fitchburg Line connecting the city to the Greater Boston area.
-
B.
Medford station
Medford station is a Long Island Rail Road commuter rail stop located in Medford, New York, serving passengers on the Ronkonkoma Branch.
-
C.
Framingham station
Framingham station is a commuter rail station in Framingham, Massachusetts, serving MBTA and Amtrak trains on the Worcester Line west of Boston.
-
D.
Malden Center station
Malden Center station is a major transit hub in Malden, Massachusetts, serving both MBTA Orange Line subway and commuter rail services.
-
E.
Belmont station
Belmont station is a commuter rail stop in Downers Grove, Illinois, served by Metra’s BNSF Railway Line connecting the suburb to downtown Chicago.
- 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: Boston and Albany Railroad commuter rail station Triple: [Waban station, formerServiceType, Boston and Albany Railroad commuter rail station]
Generated description
The Boston and Albany Railroad commuter rail station was a former suburban passenger rail stop that once served commuters traveling between Boston and its western suburbs along the historic Boston and Albany line.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Boston and Albany Railroad commuter rail station Target entity description: The Boston and Albany Railroad commuter rail station was a former suburban passenger rail stop that once served commuters traveling between Boston and its western suburbs along the historic Boston and Albany line.
-
A.
Fitchburg station
Fitchburg station is a commuter rail stop in Fitchburg, Massachusetts, serving as a terminus on the MBTA Fitchburg Line connecting the city to the Greater Boston area.
-
B.
Medford station
Medford station is a Long Island Rail Road commuter rail stop located in Medford, New York, serving passengers on the Ronkonkoma Branch.
-
C.
Framingham station
Framingham station is a commuter rail station in Framingham, Massachusetts, serving MBTA and Amtrak trains on the Worcester Line west of Boston.
-
D.
Malden Center station
Malden Center station is a major transit hub in Malden, Massachusetts, serving both MBTA Orange Line subway and commuter rail services.
-
E.
Belmont station
Belmont station is a commuter rail stop in Downers Grove, Illinois, served by Metra’s BNSF Railway Line connecting the suburb to downtown Chicago.
- F. None of above. chosen
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: formerServiceType Context triple: [Waban station, formerServiceType, Boston and Albany Railroad commuter rail station]
-
A.
formerType
chosen
Indicates that one entity previously had a certain type, role, or classification but no longer does.
-
B.
formerName
Indicates that an entity was previously known by a different name in the past.
-
C.
hasFormerService
Indicates that an entity previously provided a service to another entity but no longer does so.
-
D.
formerFunction
Indicates that an entity previously held a specific role, position, or function but no longer does so.
-
E.
formerField
Indicates that an entity previously had a particular field, role, or area of activity, but no longer does.
- F. None of above.
Provenance (6 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_69ab4a5028388190a36f3baf1588309e |
completed | March 6, 2026, 9:42 p.m. |
| NER | Named-entity recognition | batch_69abd9f1ba3081909a349a2f30f8f9c9 |
completed | March 7, 2026, 7:55 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69afa0741bc48190adffe6cfae831e26 |
completed | March 10, 2026, 4:39 a.m. |
| NEDg | Description generation | batch_69afa13a81bc819091463e6589e72361 |
completed | March 10, 2026, 4:42 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69afa1ab8da8819090af3ed60b417040 |
completed | March 10, 2026, 4:44 a.m. |
| PD | Predicate disambiguation | batch_69abd81c9b4c81908e5e0da6ac5f828b |
completed | March 7, 2026, 7:47 a.m. |
Created at: March 6, 2026, 9:54 p.m.