Triple
T21637328
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Metra commuter rail services at Chicago Union Station |
E533993
|
entity |
| Predicate | providesAccessTo |
P1985
|
FINISHED |
| Object | Chicago Loop employment centers |
—
|
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 Loop employment centers | Statement: [Metra commuter rail services at Chicago Union Station, providesAccessTo, Chicago Loop employment centers]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Chicago Loop employment centers Context triple: [Metra commuter rail services at Chicago Union Station, providesAccessTo, Chicago Loop employment centers]
-
A.
Chicago Loop
chosen
Chicago Loop is the central business district and historic downtown core of Chicago, known for its skyscrapers, theaters, parks, and major cultural attractions.
-
B.
Chicago Central Area
Chicago Central Area is the primary downtown district of Chicago, encompassing major business, cultural, and commercial neighborhoods including the Loop and its surrounding areas.
-
C.
Philadelphia urban core
Philadelphia urban core is the densely developed central area of Philadelphia that serves as the region’s primary hub for business, culture, and transportation.
-
D.
South Loop neighborhood
The South Loop neighborhood is a rapidly developing area just south of Chicago’s downtown, known for its mix of historic lofts, new high-rises, and proximity to major cultural and lakefront attractions.
-
E.
Cook County industrial corridor
The Cook County industrial corridor is a designated area in Cook County, Illinois, characterized by a high concentration of manufacturing, warehousing, and other industrial facilities that support the region’s economy.
- 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_69e0c465ae7481908577b7209fdb2a77 |
completed | April 16, 2026, 11:13 a.m. |
| NER | Named-entity recognition | batch_69ef538eef0481908f5bf0e27f8e054d |
completed | April 27, 2026, 12:16 p.m. |
Created at: April 16, 2026, 6:35 p.m.