Triple
T432306
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Shirley station |
E9739
|
entity |
| Predicate | servedByLine |
P1293
|
FINISHED |
| Object | Fitchburg Line |
E65
|
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: Fitchburg Line | Statement: [Shirley station, servedByLine, Fitchburg Line]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Fitchburg Line Context triple: [Shirley station, servedByLine, 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.
Boston and Albany Railroad Highland branch
The Boston and Albany Railroad Highland branch was a former suburban rail line in the Boston area that later became the right-of-way for the MBTA Green Line D branch light rail service.
-
D.
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.
-
E.
Hudson Line
The Hudson Line is a major passenger rail route running along the east bank of the Hudson River in New York, serving both commuter and intercity trains between New York City and points upstate.
- 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_69a2e801e1d48190b505d1dd336b52ac |
completed | Feb. 28, 2026, 1:05 p.m. |
| NER | Named-entity recognition | batch_69a2eef07e748190b05392778f3de980 |
completed | Feb. 28, 2026, 1:34 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69a51f2fbb88819092c27a0b4e5dc3b7 |
completed | March 2, 2026, 5:25 a.m. |
Created at: Feb. 28, 2026, 1:11 p.m.