Triple
T7077358
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Framingham/Worcester Line |
E164852
|
entity |
| Predicate | usesRailwayLine |
P15040
|
FINISHED |
| Object |
Boston Subdivision
The Boston Subdivision is a major freight and passenger rail corridor in Massachusetts that forms part of the main line between Boston and points west.
|
E640907
|
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: Boston Subdivision | Statement: [Framingham/Worcester Line, usesRailwayLine, Boston Subdivision]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Boston Subdivision Context triple: [Framingham/Worcester Line, usesRailwayLine, Boston Subdivision]
-
A.
Lowell Line
The Lowell Line is a Massachusetts Bay Transportation Authority commuter rail route that runs between Boston’s North Station and the city of Lowell, serving communities in the Merrimack Valley.
-
B.
Weston Subdivision
Weston Subdivision is a key railway corridor in the Greater Toronto Area used by GO Transit and other operators for commuter and freight rail services.
-
C.
Green Line West Branch
The Green Line West Branch is a segment of Chicago's 'L' rapid transit system that carries Green Line trains between Harlem/Lake and Ashland/63rd on the city's West Side.
-
D.
Mattapan Line
The Mattapan Line is a light rail trolley service in Boston, Massachusetts, operating as part of the MBTA's Red Line system between Ashmont and Mattapan.
-
E.
Hudson Subdivision
The Hudson Subdivision is a key railroad line in New York State that carries passenger and freight trains along the Hudson River corridor, including service through Albany–Rensselaer station.
- 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 Subdivision Triple: [Framingham/Worcester Line, usesRailwayLine, Boston Subdivision]
Generated description
The Boston Subdivision is a major freight and passenger rail corridor in Massachusetts that forms part of the main line between Boston and points west.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Boston Subdivision Target entity description: The Boston Subdivision is a major freight and passenger rail corridor in Massachusetts that forms part of the main line between Boston and points west.
-
A.
Lowell Line
The Lowell Line is a Massachusetts Bay Transportation Authority commuter rail route that runs between Boston’s North Station and the city of Lowell, serving communities in the Merrimack Valley.
-
B.
Weston Subdivision
Weston Subdivision is a key railway corridor in the Greater Toronto Area used by GO Transit and other operators for commuter and freight rail services.
-
C.
Green Line West Branch
The Green Line West Branch is a segment of Chicago's 'L' rapid transit system that carries Green Line trains between Harlem/Lake and Ashland/63rd on the city's West Side.
-
D.
Mattapan Line
The Mattapan Line is a light rail trolley service in Boston, Massachusetts, operating as part of the MBTA's Red Line system between Ashmont and Mattapan.
-
E.
Hudson Subdivision
The Hudson Subdivision is a key railroad line in New York State that carries passenger and freight trains along the Hudson River corridor, including service through Albany–Rensselaer station.
- 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_69c6887cbc6c8190bdfac42d940f4d8a |
completed | March 27, 2026, 1:39 p.m. |
| NER | Named-entity recognition | batch_69c6e4ee29288190a9a3fa7a6c713d8f |
completed | March 27, 2026, 8:13 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c7946dbf048190a6307fefeb1dd6a9 |
completed | March 28, 2026, 8:42 a.m. |
| NEDg | Description generation | batch_69c7955aefdc8190ab38d93097502ec1 |
completed | March 28, 2026, 8:46 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69c795beba2c8190983f871c42f9b72e |
completed | March 28, 2026, 8:47 a.m. |
Created at: March 27, 2026, 2:40 p.m.