Triple
T17725826
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Chicago Transit Authority Green Line stations |
E442458
|
entity |
| Predicate | hasBranch |
P35
|
FINISHED |
| Object |
Jackson Park branch (historical)
The Jackson Park branch (historical) was a former elevated rapid transit branch of Chicago’s Green Line that once served the South Side near Jackson Park.
|
E1284175
|
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: Jackson Park branch (historical) | Statement: [Chicago Transit Authority Green Line stations, hasBranch, Jackson Park branch (historical)]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Jackson Park branch (historical) Context triple: [Chicago Transit Authority Green Line stations, hasBranch, Jackson Park branch (historical)]
-
A.
Forest Park branch
The Forest Park branch is the western segment of Chicago's CTA Blue Line rapid transit route, serving neighborhoods between downtown Chicago and the suburb of Forest Park.
-
B.
South Ward Branch
South Ward Branch is a neighborhood library facility serving the South Ward community as part of the Newark Public Library system in Newark, New Jersey.
-
C.
Lake Street branch
The Lake Street branch is a segment of Chicago's elevated rapid transit system, historically part of the Green Line serving the city's West Side.
-
D.
Windsor Park Branch
Windsor Park Branch is a neighborhood public library facility in Austin, Texas that provides books, media, and community services as part of the Austin Public Library system.
-
E.
Cermak Branch
Cermak Branch is a segment of the Chicago Transit Authority’s rapid transit system that forms part of the Pink Line route.
- 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: Jackson Park branch (historical) Triple: [Chicago Transit Authority Green Line stations, hasBranch, Jackson Park branch (historical)]
Generated description
The Jackson Park branch (historical) was a former elevated rapid transit branch of Chicago’s Green Line that once served the South Side near Jackson Park.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Jackson Park branch (historical) Target entity description: The Jackson Park branch (historical) was a former elevated rapid transit branch of Chicago’s Green Line that once served the South Side near Jackson Park.
-
A.
Forest Park branch
The Forest Park branch is the western segment of Chicago's CTA Blue Line rapid transit route, serving neighborhoods between downtown Chicago and the suburb of Forest Park.
-
B.
South Ward Branch
South Ward Branch is a neighborhood library facility serving the South Ward community as part of the Newark Public Library system in Newark, New Jersey.
-
C.
Lake Street branch
The Lake Street branch is a segment of Chicago's elevated rapid transit system, historically part of the Green Line serving the city's West Side.
-
D.
Windsor Park Branch
Windsor Park Branch is a neighborhood public library facility in Austin, Texas that provides books, media, and community services as part of the Austin Public Library system.
-
E.
Cermak Branch
Cermak Branch is a segment of the Chicago Transit Authority’s rapid transit system that forms part of the Pink Line route.
- 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_69d8b9ec79688190b86bdcef85a7b3aa |
completed | April 10, 2026, 8:50 a.m. |
| NER | Named-entity recognition | batch_69e47489c59c8190bbffefad20dc6346 |
completed | April 19, 2026, 6:22 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a0230324c0881909ba7b299f16b5602 |
completed | May 11, 2026, 7:38 p.m. |
| NEDg | Description generation | batch_6a0231f02cf48190ac513a7d218aca3b |
completed | May 11, 2026, 7:45 p.m. |
| NED2 | Entity disambiguation (via description) | batch_6a0233cfe9388190a7786d88a432aa1f |
completed | May 11, 2026, 7:53 p.m. |
Created at: April 10, 2026, 10:07 a.m.