Triple
T3503
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | MBTA Fitchburg Line |
E65
|
entity |
| Predicate | hasStation |
P35
|
FINISHED |
| Object | Littleton/Route 495 |
E2879
|
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: Littleton/Route 495 | Statement: [MBTA Fitchburg Line, hasStation, Littleton/Route 495]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Littleton/Route 495 Context triple: [MBTA Fitchburg Line, hasStation, Littleton/Route 495]
-
A.
Interstate 395
Interstate 395 is a major auxiliary Interstate Highway in the eastern United States that connects Washington, D.C. with suburban Virginia and serves as a key commuter and regional traffic corridor.
-
B.
Harvard Square
Harvard Square is a historic commercial and cultural center in Cambridge, Massachusetts, known for its vibrant mix of shops, restaurants, street performers, and its proximity to Harvard University.
-
C.
Littleton
chosen
Littleton is a suburban town in Middlesex County, Massachusetts, located northwest of Boston.
-
D.
MBTA Red Line
The MBTA Red Line is a major rapid transit line in the Boston metropolitan area that runs through key communities including Cambridge, connecting them to downtown Boston and other parts of the region.
-
E.
Harvard Yard
Harvard Yard is the historic central area of Harvard University’s campus in Cambridge, Massachusetts, known for its iconic brick buildings, freshman dormitories, and academic landmarks.
- 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_69a238d6b47881909e68288aed2fd858 |
completed | Feb. 28, 2026, 12:37 a.m. |
| NER | Named-entity recognition | batch_69a23ff0650c8190bea8724de0343e58 |
completed | Feb. 28, 2026, 1:08 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69a25528aa18819088213f16547924ca |
completed | Feb. 28, 2026, 2:38 a.m. |
Created at: Feb. 28, 2026, 12:40 a.m.