Triple
T1984308
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | North Leominster |
E43103
|
entity |
| Predicate | isOnCorridor |
P1018
|
FINISHED |
| Object | Boston–Fitchburg rail corridor |
E178900
|
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–Fitchburg rail corridor | Statement: [North Leominster, isOnCorridor, Boston–Fitchburg rail corridor]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Boston–Fitchburg rail corridor Context triple: [North Leominster, isOnCorridor, Boston–Fitchburg rail corridor]
-
A.
Boston–Portland main line
The Boston–Portland main line is a historic New England railroad corridor connecting Boston, Massachusetts, with Portland, Maine, that has long served as a key passenger and freight route along the region’s coast.
-
B.
Boston–Concord main line
The Boston–Concord main line was a principal intercity rail corridor in New England that connected Boston, Massachusetts with Concord, New Hampshire, serving as a key route for the Boston and Maine Railroad.
-
C.
Fitchburg Line
chosen
The Fitchburg Line is a commuter rail service operated by the Massachusetts Bay Transportation Authority (MBTA) that runs between Boston and the city of Fitchburg in Massachusetts.
-
D.
Providence/Stoughton Line
The Providence/Stoughton Line is a Massachusetts Bay Transportation Authority commuter rail route connecting Boston with Providence, Rhode Island and Stoughton, Massachusetts.
-
E.
Newburyport/Rockport Line
The Newburyport/Rockport Line is a Massachusetts Bay Transportation Authority commuter rail route serving Boston’s North Station and coastal communities north of the city, including Newburyport and Rockport.
- 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_69a88713ddc88190a969715658ebe7a8 |
completed | March 4, 2026, 7:25 p.m. |
| NER | Named-entity recognition | batch_69abb820815481908aac6d89b437225b |
completed | March 7, 2026, 5:31 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ae1fda860481909cae9db2dd60aec9 |
completed | March 9, 2026, 1:18 a.m. |
Created at: March 4, 2026, 7:37 p.m.