Triple
T22247628
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Charles T. Yerkes |
E549885
|
entity |
| Predicate | employer |
P7
|
FINISHED |
| Object | North Chicago Street Railroad Company |
—
|
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: North Chicago Street Railroad Company | Statement: [Charles T. Yerkes, employer, North Chicago Street Railroad Company]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: North Chicago Street Railroad Company Context triple: [Charles T. Yerkes, employer, North Chicago Street Railroad Company]
-
A.
Chicago City Railway Company
chosen
The Chicago City Railway Company was a major streetcar operator in Chicago that played a key role in developing the city’s public transit system in the late 19th and early 20th centuries.
-
B.
Calumet and South Chicago Railway Company
The Calumet and South Chicago Railway Company was a street railway operator that provided transit services in Chicago’s South Side and surrounding industrial areas in the early 20th century.
-
C.
Chicago Great Western Railway
The Chicago Great Western Railway was a regional American railroad that operated in the Midwest, known for its efficient freight service and eventual absorption into larger rail systems.
-
D.
Chicago Rapid Transit Company
The Chicago Rapid Transit Company was the private operator of Chicago’s elevated “L” rail system in the early 20th century before public transit was consolidated under the Chicago Transit Authority.
-
E.
Northwestern Elevated Railroad
The Northwestern Elevated Railroad was an early elevated rapid transit line in Chicago that later became part of the city’s unified "L" system.
- 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_69e11e41d9408190bd770cf282e22753 |
completed | April 16, 2026, 5:37 p.m. |
| NER | Named-entity recognition | batch_69f13219dc3481908dd987c4e98623e6 |
completed | April 28, 2026, 10:18 p.m. |
Created at: April 16, 2026, 8:38 p.m.