Triple
T13810280
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Wellesley Hills station |
E331869
|
entity |
| Predicate | railwayLine |
P848
|
FINISHED |
| Object | Boston Subdivision |
E640907
|
NE FINISHED |
How this triple was built (2 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: [Wellesley Hills station, railwayLine, Boston Subdivision]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Boston Subdivision Context triple: [Wellesley Hills station, railwayLine, Boston Subdivision]
-
A.
Boston Subdivision
chosen
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.
-
B.
Roxbury Subdivision
Roxbury Subdivision is a rail line operated by the New England Central Railroad, forming part of its regional freight rail network in New England.
-
C.
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.
-
D.
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.
-
E.
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.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (3 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_69d81c59f8808190a851bc56afdc55e9 |
completed | April 9, 2026, 9:38 p.m. |
| NER | Named-entity recognition | batch_69de026ff6b481908066d6bf27064417 |
completed | April 14, 2026, 9:01 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69f7b09161108190abbd97a30af9ab49 |
completed | May 3, 2026, 8:31 p.m. |
Created at: April 9, 2026, 10:12 p.m.