Triple
T5172214
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Howard station |
E116709
|
entity |
| Predicate | isKeyHubFor |
P523
|
FINISHED |
| Object | North Side CTA rail network |
E399332
|
NE FINISHED |
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: North Side CTA rail network | Statement: [Howard station, isKeyHubFor, North Side CTA rail network]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: North Side CTA rail network Context triple: [Howard station, isKeyHubFor, North Side CTA rail network]
-
A.
Metra Rock Island District line
The Metra Rock Island District line is a commuter rail route in the Chicago metropolitan area that connects downtown Chicago with various southwest suburbs, including Tinley Park.
-
B.
CTA rail network
chosen
The CTA rail network is the rapid transit system serving Chicago and several surrounding suburbs, commonly known as the "L" and consisting of multiple color-coded lines operating on elevated, subway, and at-grade tracks.
-
C.
Orange Line Metro Train
Orange Line Metro Train is a rapid transit line in Lahore, Pakistan, forming part of the city’s metro system and providing high-capacity urban rail service.
-
D.
Red Line (Chicago "L")
The Red Line is a major rapid transit route of the Chicago "L" system, running north–south through the city and operating 24 hours a day.
-
E.
CTA Red Line
The CTA Red Line is a major rapid transit route in Chicago that runs north–south through the city, including service through the downtown Loop.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (3 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_69bd445ff97c81909a2615cc56235470 |
completed | March 20, 2026, 12:58 p.m. |
| NER | Named-entity recognition | batch_69bd795252a481908634779f3f656574 |
completed | March 20, 2026, 4:44 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69bed9471b4881909c8436853818a8a0 |
completed | March 21, 2026, 5:45 p.m. |
Created at: March 20, 2026, 1:45 p.m.