Triple
T4222435
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | CHI |
E94372
|
entity |
| Predicate | representsStation |
P41163
|
FINISHED |
| Object | Chicago Union Station |
E17115
|
NE FINISHED |
How this triple was built (3 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: Chicago Union Station | Statement: [CHI, representsStation, Chicago Union Station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Chicago Union Station Context triple: [CHI, representsStation, Chicago Union Station]
-
A.
Chicago Union Station
chosen
Chicago Union Station is a major intercity and commuter rail terminal in downtown Chicago that serves as a central hub for Amtrak and regional rail services.
-
B.
Springfield Union Station
Springfield Union Station is a historic intermodal transportation hub in downtown Springfield, Massachusetts, serving as a major regional center for rail and bus travel.
-
C.
Dallas Union Station
Dallas Union Station is a historic railway and transit hub in downtown Dallas, Texas, serving Amtrak, commuter rail, and local light rail services.
-
D.
Union Station
Union Station is a historic former railroad terminal in St. Louis that has been transformed into a mixed-use complex featuring attractions, dining, and entertainment.
-
E.
Union Station
Union Station is a historic train station name commonly used for major passenger rail terminals in several North American cities.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: representsStation Context triple: [CHI, representsStation, Chicago Union Station]
-
A.
servesAsThroughStationFor
Indicates that a station functions as an intermediate (through) stop for a particular service, route, or journey rather than as its starting or ending point.
-
B.
associatedWithStationName
chosen
Indicates a relationship where something is linked or connected to a particular station identified by its name.
-
C.
isMajorStationOn
Indicates that a station serves as a primary or significant stop on a particular route or line.
-
D.
ownedStation
Indicates that one entity possesses ownership or control over a particular station.
-
E.
hasStationCode
Indicates that an entity is associated with a specific station identification code.
- F. None of above.
Provenance (4 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_69b3451997e08190851db4a9a588837d |
completed | March 12, 2026, 10:58 p.m. |
| NER | Named-entity recognition | batch_69b34e4bf6088190926b982039a12079 |
completed | March 12, 2026, 11:37 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69b5a85c79a881908cadc892dc30d8ef |
completed | March 14, 2026, 6:26 p.m. |
| PD | Predicate disambiguation | batch_69b347f1d7b48190bd8974c03c7dc937 |
completed | March 12, 2026, 11:10 p.m. |
Created at: March 12, 2026, 11:04 p.m.