Triple
T21081598
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Copley Place |
E519382
|
entity |
| Predicate | servedBy |
P82
|
FINISHED |
| Object | Back Bay MBTA station |
—
|
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: Back Bay MBTA station | Statement: [Copley Place, servedBy, Back Bay MBTA station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Back Bay MBTA station Context triple: [Copley Place, servedBy, Back Bay MBTA station]
-
A.
MBTA Lechmere station
MBTA Lechmere station is a Green Line light rail station in East Cambridge, Massachusetts, serving as a key transit hub near the CambridgeSide shopping and office district.
-
B.
MBTA North Station
MBTA North Station is a major Boston transportation hub that serves as a key terminal for MBTA subway and commuter rail lines as well as Amtrak services.
-
C.
MBTA South Station
MBTA South Station is Boston’s major intermodal transit hub, serving as a central terminal for commuter rail, Amtrak, subway, and bus services.
-
D.
Back Bay station
chosen
Back Bay station is a major transportation hub in Boston, Massachusetts, serving MBTA commuter rail, Amtrak, and subway lines in the Back Bay neighborhood.
-
E.
MBTA Silver Hill station
MBTA Silver Hill station is a small commuter rail stop on the Massachusetts Bay Transportation Authority’s Fitchburg Line serving the Silver Hill neighborhood of Weston, Massachusetts.
- 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_69e0b506e59c8190849b71ed07929215 |
completed | April 16, 2026, 10:08 a.m. |
| NER | Named-entity recognition | batch_69e702db430c81908a1547d8fbe45506 |
completed | April 21, 2026, 4:53 a.m. |
Created at: April 16, 2026, 2:49 p.m.