Triple
T19855909
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Dearborn Station |
E477130
|
entity |
| Predicate | railwayTerminusFor |
P21210
|
FINISHED |
| Object | Chicago, Indianapolis and Louisville Railway |
—
|
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, Indianapolis and Louisville Railway | Statement: [Dearborn Station, railwayTerminusFor, Chicago, Indianapolis and Louisville Railway]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Chicago, Indianapolis and Louisville Railway Context triple: [Dearborn Station, railwayTerminusFor, Chicago, Indianapolis and Louisville Railway]
-
A.
Chicago, Indianapolis and Louisville Railway
chosen
The Chicago, Indianapolis and Louisville Railway, commonly known as the Monon Railroad, was a regional railroad that connected key Midwestern cities and played a significant role in the transportation network of Indiana and surrounding states in the late 19th and early 20th centuries.
-
B.
Chicago and Western Indiana Railroad
The Chicago and Western Indiana Railroad was a terminal railroad company in Chicago that provided joint access and terminal facilities, including Dearborn Station, to several major railroads entering the city.
-
C.
New York, Chicago and St. Louis Railroad
The New York, Chicago and St. Louis Railroad, commonly known as the Nickel Plate Road, was a prominent Midwestern and Great Lakes region railroad in the United States that operated major freight and passenger services between key industrial cities.
-
D.
Pittsburgh, Cincinnati, Chicago and St. Louis Railroad
The Pittsburgh, Cincinnati, Chicago and St. Louis Railroad was a major Midwestern and Mid-Atlantic rail system that formed a key part of the Pennsylvania Railroad’s network, linking important industrial cities across the region.
-
E.
Chicago South Shore and South Bend Railroad
The Chicago South Shore and South Bend Railroad is an interurban electric railroad in the Midwest that historically operated passenger and freight service between Chicago, Illinois, and South Bend, Indiana.
- 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_69d8e51d39d081909bcfafeaaf3d2fcc |
completed | April 10, 2026, 11:55 a.m. |
| NER | Named-entity recognition | batch_69e6586c14fc81908d34785f1088b0a9 |
completed | April 20, 2026, 4:46 p.m. |
Created at: April 10, 2026, 1:51 p.m.