Triple
T15872289
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | The Grand Central Depot of the Underground Railroad |
E384858
|
entity |
| Predicate | hasNickname |
P39
|
FINISHED |
| Object | Grand Central Depot |
E28946
|
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: Grand Central Depot | Statement: [The Grand Central Depot of the Underground Railroad, hasNickname, Grand Central Depot]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Grand Central Depot Context triple: [The Grand Central Depot of the Underground Railroad, hasNickname, Grand Central Depot]
-
A.
Grand Central Terminal
chosen
Grand Central Terminal is a historic Beaux-Arts railway station and iconic transportation hub in Midtown Manhattan, renowned for its grand architecture and celestial main concourse ceiling.
-
B.
Grand Central concourse
Grand Central concourse is the main indoor public space of Birmingham’s Grand Central complex, serving as a busy hub that links the shopping centre with Birmingham New Street railway station and the wider city centre pedestrian network.
-
C.
Hyde Park Railroad Station
Hyde Park Railroad Station is a historic former train station in Hyde Park, New York, notable for serving the local community and nearby estates including that of President Franklin D. Roosevelt.
-
D.
Penn Station (New York City)
Penn Station (New York City) is a major underground railroad station and one of the busiest transportation hubs in the United States, serving Amtrak, commuter rail, and subway lines in Midtown Manhattan.
-
E.
Union Square station
Union Square station is a Massachusetts Bay Transportation Authority (MBTA) Green Line light rail station serving the Union Square neighborhood of Somerville, Massachusetts.
- 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_69d86da4e86481909f1325fdc971b5ec |
completed | April 10, 2026, 3:25 a.m. |
| NER | Named-entity recognition | batch_69e155faefd08190af634867370796b3 |
completed | April 16, 2026, 9:34 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ffa94ca15c8190bdd5fe0a30b54b51 |
completed | May 9, 2026, 9:38 p.m. |
Created at: April 10, 2026, 4:51 a.m.