Triple
T4040000
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | CTA Orange Line |
E83922
|
entity |
| Predicate | hasStation |
P35
|
FINISHED |
| Object |
Halsted station (Orange Line)
Halsted station (Orange Line) is a Chicago 'L' rapid transit stop serving the city's Southwest Side on the Chicago Transit Authority's Orange Line.
|
E411296
|
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: Halsted station (Orange Line) | Statement: [CTA Orange Line, hasStation, Halsted station (Orange Line)]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Halsted station (Orange Line) Context triple: [CTA Orange Line, hasStation, Halsted station (Orange Line)]
-
A.
Melrose Park station
Melrose Park station is a commuter rail stop in the Chicago metropolitan area serving passengers in and around Melrose Park, Illinois.
-
B.
Roxbury Crossing station
Roxbury Crossing station is an MBTA Orange Line rapid transit stop in Boston, Massachusetts, serving the Mission Hill neighborhood and surrounding areas.
-
C.
Brookline Village station
Brookline Village station is a light rail stop on the Massachusetts Bay Transportation Authority’s Green Line in the Brookline neighborhood just outside Boston.
-
D.
Savin Hill station
Savin Hill station is a rapid transit stop on the Massachusetts Bay Transportation Authority's Red Line serving the Savin Hill neighborhood of Dorchester in Boston, Massachusetts.
-
E.
Copley station
Copley station is a major underground MBTA subway stop in Boston’s Back Bay neighborhood, serving multiple branches of the Green Line and providing access to nearby landmarks like Copley Square and the Boston Public Library.
- 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: Halsted station (Orange Line) Triple: [CTA Orange Line, hasStation, Halsted station (Orange Line)]
Generated description
Halsted station (Orange Line) is a Chicago 'L' rapid transit stop serving the city's Southwest Side on the Chicago Transit Authority's Orange Line.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Halsted station (Orange Line) Target entity description: Halsted station (Orange Line) is a Chicago 'L' rapid transit stop serving the city's Southwest Side on the Chicago Transit Authority's Orange Line.
-
A.
Melrose Park station
Melrose Park station is a commuter rail stop in the Chicago metropolitan area serving passengers in and around Melrose Park, Illinois.
-
B.
Roxbury Crossing station
Roxbury Crossing station is an MBTA Orange Line rapid transit stop in Boston, Massachusetts, serving the Mission Hill neighborhood and surrounding areas.
-
C.
Brookline Village station
Brookline Village station is a light rail stop on the Massachusetts Bay Transportation Authority’s Green Line in the Brookline neighborhood just outside Boston.
-
D.
Savin Hill station
Savin Hill station is a rapid transit stop on the Massachusetts Bay Transportation Authority's Red Line serving the Savin Hill neighborhood of Dorchester in Boston, Massachusetts.
-
E.
Copley station
Copley station is a major underground MBTA subway stop in Boston’s Back Bay neighborhood, serving multiple branches of the Green Line and providing access to nearby landmarks like Copley Square and the Boston Public Library.
- 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_69aed92f7cf0819098e0539bdcc3767f |
completed | March 9, 2026, 2:29 p.m. |
| NER | Named-entity recognition | batch_69aefb39400881909d0f5430f04e441c |
completed | March 9, 2026, 4:54 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69b56299dbe88190b36f4a488201acd8 |
completed | March 14, 2026, 1:28 p.m. |
| NEDg | Description generation | batch_69b5666c19f4819084f7e584e34f82c2 |
completed | March 14, 2026, 1:45 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69b566cd444081908e61d131abd93d6d |
completed | March 14, 2026, 1:46 p.m. |
Created at: March 9, 2026, 3:37 p.m.