Triple
T1215955
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Metro-North Railroad |
E26106
|
entity |
| Predicate | hasMainHub |
P2958
|
FINISHED |
| Object |
Harlem–125th Street station
Harlem–125th Street station is a major New York City commuter rail hub in East Harlem serving multiple Metro-North Railroad lines.
|
E186312
|
NE FINISHED |
How this triple was built (4 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: Harlem–125th Street station | Statement: [Metro-North Railroad, hasMainHub, Harlem–125th Street station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Harlem–125th Street station Context triple: [Metro-North Railroad, hasMainHub, Harlem–125th Street station]
-
A.
149th Street–Grand Concourse station
The 149th Street–Grand Concourse station is a major New York City Subway complex in the Bronx that serves as a key transfer point between multiple lines, including the White Plains Road Line.
-
B.
Central Park North–110th Street station
Central Park North–110th Street station is a New York City Subway station in Manhattan serving the 2 and 3 trains near the northern edge of Central Park.
-
C.
Prospect Park station
Prospect Park station is a public transit stop serving the Prospect Park neighborhood, providing rail access to the surrounding area.
-
D.
Harlem (Forest Park branch) station
Harlem (Forest Park branch) station is a Chicago Transit Authority rapid transit stop on the city's West Side serving the Blue Line’s Forest Park branch.
-
E.
57th Street–Seventh Avenue station
The 57th Street–Seventh Avenue station is a New York City Subway station in Midtown Manhattan serving the BMT Broadway Line near major cultural and commercial landmarks.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg
Description generation
gpt-5.1
Instruction
Generate a one-sentence description of the target entity. You are given a context triple in the form (subject, predicate, object), where the object is the target entity. # Instructions Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. Avoid repeating the information from the triple, unless really essential. # Response Format Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Harlem–125th Street station Triple: [Metro-North Railroad, hasMainHub, Harlem–125th Street station]
Generated description
Harlem–125th Street station is a major New York City commuter rail hub in East Harlem serving multiple Metro-North Railroad lines.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Harlem–125th Street station Target entity description: Harlem–125th Street station is a major New York City commuter rail hub in East Harlem serving multiple Metro-North Railroad lines.
-
A.
149th Street–Grand Concourse station
The 149th Street–Grand Concourse station is a major New York City Subway complex in the Bronx that serves as a key transfer point between multiple lines, including the White Plains Road Line.
-
B.
Central Park North–110th Street station
Central Park North–110th Street station is a New York City Subway station in Manhattan serving the 2 and 3 trains near the northern edge of Central Park.
-
C.
Prospect Park station
Prospect Park station is a public transit stop serving the Prospect Park neighborhood, providing rail access to the surrounding area.
-
D.
Harlem (Forest Park branch) station
Harlem (Forest Park branch) station is a Chicago Transit Authority rapid transit stop on the city's West Side serving the Blue Line’s Forest Park branch.
-
E.
57th Street–Seventh Avenue station
The 57th Street–Seventh Avenue station is a New York City Subway station in Midtown Manhattan serving the BMT Broadway Line near major cultural and commercial landmarks.
- 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_69a4948331fc8190b531ac9bec71c491 |
completed | March 1, 2026, 7:33 p.m. |
| NER | Named-entity recognition | batch_69a4be059c5c8190a200f09442c22334 |
completed | March 1, 2026, 10:30 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ad607966748190a5661d47021bf526 |
completed | March 8, 2026, 11:41 a.m. |
| NEDg | Description generation | batch_69ad6124c5f481909427535ec1db38fc |
completed | March 8, 2026, 11:44 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69ad61ec8ce081908340301a6f45f5b2 |
completed | March 8, 2026, 11:47 a.m. |
Created at: March 1, 2026, 7:46 p.m.