Triple
T21385326
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | 181st Street |
E527478
|
entity |
| Predicate | openedAsPartOf |
P9951
|
FINISHED |
| Object | IND Eighth Avenue Line initial segment |
—
|
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: IND Eighth Avenue Line initial segment | Statement: [181st Street, openedAsPartOf, IND Eighth Avenue Line initial segment]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: IND Eighth Avenue Line initial segment Context triple: [181st Street, openedAsPartOf, IND Eighth Avenue Line initial segment]
-
A.
IND Eighth Avenue services
IND Eighth Avenue services are a group of New York City Subway lines that run primarily along the Eighth Avenue corridor in Manhattan as part of the IND division.
-
B.
A train (IND Eighth Avenue Line)
The A train on the IND Eighth Avenue Line is a major New York City Subway service that runs express through Manhattan and Brooklyn, connecting northern Manhattan and the Rockaways.
-
C.
E Eighth Avenue Local
The E Eighth Avenue Local is a New York City Subway service that runs along the IND Eighth Avenue Line, connecting Queens, Manhattan, and Brooklyn.
-
D.
IRT Ninth Avenue Line
The IRT Ninth Avenue Line was New York City's first elevated railway, a pioneering rapid transit line that once ran above Manhattan's Ninth Avenue before being dismantled in the mid-20th century.
-
E.
New York City Subway IND Eighth Avenue Line
chosen
The New York City Subway IND Eighth Avenue Line is a major north–south subway trunk line in Manhattan that carries several key services, including the A, C, and E trains, along Eighth Avenue and into adjacent boroughs.
- 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_69e0b51f363c8190944000ab5523b02b |
completed | April 16, 2026, 10:08 a.m. |
| NER | Named-entity recognition | batch_69ee62c9494081909efa74e189454dc6 |
completed | April 26, 2026, 7:08 p.m. |
Created at: April 16, 2026, 5:12 p.m.