Triple
T2506109
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Boylston station |
E52583
|
entity |
| Predicate | partOfTunnel |
P40851
|
FINISHED |
| Object | Tremont Street subway |
E163466
|
NE FINISHED |
How this triple was built (3 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: Tremont Street subway | Statement: [Boylston station, partOfTunnel, Tremont Street subway]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Tremont Street subway Context triple: [Boylston station, partOfTunnel, Tremont Street subway]
-
A.
Tremont Street subway
chosen
The Tremont Street subway is the historic underground streetcar tunnel in downtown Boston that forms part of the MBTA Green Line and is recognized as the oldest subway tunnel in North America.
-
B.
Degraves Street subway
Degraves Street subway is an underground pedestrian passage in central Melbourne that links Flinders Street Station to Degraves Street and nearby laneways.
-
C.
Broad Street (BMT Nassau Street Line)
Broad Street is a New York City Subway station in Lower Manhattan serving the BMT Nassau Street Line, primarily used by J and Z trains.
-
D.
Dyckman Street (A line)
Dyckman Street (A line) is a New York City Subway station on the IND Eighth Avenue Line serving the A train in the Inwood neighborhood of Upper Manhattan.
-
E.
Pennsylvania Avenue (IRT New Lots Line)
Pennsylvania Avenue is a local New York City Subway station on the IRT New Lots Line in Brownsville, Brooklyn, served by the 3 train.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: partOfTunnel Context triple: [Boylston station, partOfTunnel, Tremont Street subway]
-
A.
tunnelCircumference
Indicates the circular distance around the inner boundary of a tunnel’s cross-section.
-
B.
tunnelType
Indicates the specific kind or classification of a tunnel associated with an entity.
-
C.
operatorOfTunnelSection
Indicates that an entity is responsible for operating or managing a specific section of a tunnel.
-
D.
usesTunnel
Indicates that one entity makes use of a tunnel as a passage or route to reach or connect to another entity.
-
E.
SeikanTunnelType
Indicates that one entity is classified as a specific type or category of Seikan Tunnel.
- F. None of above. chosen
Provenance (5 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_69ab4957b3a88190adf968ae0c1b931c |
completed | March 6, 2026, 9:38 p.m. |
| NER | Named-entity recognition | batch_69abd65d6a988190aaaac8e98540a14f |
completed | March 7, 2026, 7:40 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69af2b8fa0d88190bc153a460091bcf1 |
completed | March 9, 2026, 8:20 p.m. |
| PD | Predicate disambiguation | batch_69abd0bd996c8190ba8b9d6e4333b8d4 |
completed | March 7, 2026, 7:16 a.m. |
| PDg | Predicate description generation | batch_69abd65c9d508190957285a078698ed2 |
completed | March 7, 2026, 7:40 a.m. |
Created at: March 6, 2026, 9:46 p.m.