Triple
T142345
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Silver Hill |
E2880
|
entity |
| Predicate | onLine |
P1293
|
FINISHED |
| Object | Fitchburg Line |
E65
|
NE FINISHED |
How this triple was built (3 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: Fitchburg Line | Statement: [Silver Hill, onLine, Fitchburg Line]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Fitchburg Line Context triple: [Silver Hill, onLine, Fitchburg Line]
-
A.
Fitchburg Railroad
The Fitchburg Railroad was a historic New England rail line that operated across Massachusetts and into Vermont, later becoming part of the Boston and Maine Railroad system.
-
B.
MBTA Fitchburg Line
chosen
The MBTA Fitchburg Line is a commuter rail route in the Greater Boston area that runs between Boston and Fitchburg, serving numerous suburban communities along the way.
-
C.
Trenton Line
Trenton Line is a commuter rail service in the Philadelphia region operated by SEPTA Regional Rail, connecting Center City Philadelphia with Trenton, New Jersey.
-
D.
Pelham Line
The Pelham Line is a New York City Subway route in the Bronx and Manhattan, operated by the IRT division and primarily served by the 6 train.
-
E.
MBTA Blue Line
The MBTA Blue Line is a rapid transit line in the Boston metropolitan area that runs primarily along the city’s northeastern corridor, connecting downtown Boston with East Boston, Logan Airport, and Revere.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: onLine Context triple: [Silver Hill, onLine, Fitchburg Line]
-
A.
isOn
Indicates that one entity is physically positioned above and in contact with the top surface of another entity.
-
B.
usedOn
Indicates that one entity is applied to, operated on, or otherwise utilized in relation to another entity.
-
C.
openingLine
Indicates that one entity is the first line or initial statement that begins another entity, such as a text, speech, or conversation.
-
D.
servedByLine
chosen
Indicates that a transportation stop, station, or location is provided service by a specific transit line.
-
E.
positionOn
Indicates that one entity is located on top of or at a specific place along the surface or extent of another entity.
- F. None of above.
Provenance (4 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_69a2521e35c08190b28e5c9f1e3c9b59 |
completed | Feb. 28, 2026, 2:25 a.m. |
| NER | Named-entity recognition | batch_69a2580ca15481909fa3e87d804a1b23 |
completed | Feb. 28, 2026, 2:50 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69a38b8959dc8190b6ec8ef2583505a1 |
completed | March 1, 2026, 12:42 a.m. |
| PD | Predicate disambiguation | batch_69a2565559ac81909e0c4e095a7dfa27 |
completed | Feb. 28, 2026, 2:43 a.m. |
Created at: Feb. 28, 2026, 2:31 a.m.