Triple
T21576719
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Brunswick Station |
E532412
|
entity |
| Predicate | railwayLine |
P848
|
FINISHED |
| Object | former Maine Central Railroad Rockland Branch |
—
|
NE NERFINISHED |
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: former Maine Central Railroad Rockland Branch | Statement: [Brunswick Station, railwayLine, former Maine Central Railroad Rockland Branch]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: former Maine Central Railroad Rockland Branch Context triple: [Brunswick Station, railwayLine, former Maine Central Railroad Rockland Branch]
-
A.
Boston and Maine Railroad branch line
The Boston and Maine Railroad branch line was a regional rail route in New England that once provided local passenger and freight service through towns such as Sandown, New Hampshire.
-
B.
Boston and Maine Railroad Lexington Branch
The Boston and Maine Railroad Lexington Branch was a former suburban rail line in Massachusetts that once connected communities northwest of Boston and later provided the corridor for today’s Minuteman Bikeway.
-
C.
Bangor and Aroostook Railroad
The Bangor and Aroostook Railroad was a regional railroad in northern Maine known for hauling forest products, potatoes, and other freight across the state's rural areas.
-
D.
Boston and Maine Railroad main line
The Boston and Maine Railroad main line was a major New England rail corridor that formed the core route of the Boston and Maine Railroad, connecting Boston with key cities and towns across northern Massachusetts and beyond.
-
E.
Maine Central Railroad
chosen
Maine Central Railroad was a major New England railroad that operated extensive freight and passenger services across Maine and neighboring states from the 19th through the 20th century.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (2 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_69e0c4618bec8190bcb0feb74568cbb1 |
completed | April 16, 2026, 11:13 a.m. |
| NER | Named-entity recognition | batch_69eee9d07ddc8190a4bba08223e56f46 |
completed | April 27, 2026, 4:45 a.m. |
Created at: April 16, 2026, 6:31 p.m.