Triple
T20911257
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Ogilvie Transportation Center |
E514950
|
entity |
| Predicate | formerName |
P65
|
FINISHED |
| Object | Chicago and North Western Terminal |
—
|
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: Chicago and North Western Terminal | Statement: [Ogilvie Transportation Center, formerName, Chicago and North Western Terminal]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Chicago and North Western Terminal Context triple: [Ogilvie Transportation Center, formerName, Chicago and North Western Terminal]
-
A.
Chicago, Burlington and Quincy Railroad station
Chicago, Burlington and Quincy Railroad station was the original name of what is now known as Hinsdale station, a historic commuter rail stop in Hinsdale, Illinois that once served the CB&Q Railroad.
-
B.
Chicago and North Western Terminal (Ogilvie Transportation Center)
chosen
The Chicago and North Western Terminal, now known as Ogilvie Transportation Center, is a major commuter rail hub in downtown Chicago serving Metra trains and connecting the city’s suburbs with its central business district.
-
C.
Central Station, Chicago
Central Station in Chicago was a major passenger railroad terminal that served as a key transportation hub for several railroads on the city's Near South Side.
-
D.
Chicago Union Station
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.
-
E.
Mundelein station
Mundelein station is a commuter rail stop in Mundelein, Illinois, serving passengers on Metra’s North Central Service line between Chicago and its northern suburbs.
- 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_69e0b4f9d5ec8190bb2bd27350ed341c |
completed | April 16, 2026, 10:07 a.m. |
| NER | Named-entity recognition | batch_69e6ec5e3f988190932956119197e3b1 |
completed | April 21, 2026, 3:17 a.m. |
Created at: April 16, 2026, 12:48 p.m.