Triple
T19855902
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Dearborn Station |
E477130
|
entity |
| Predicate | railwayTerminusFor |
P21210
|
FINISHED |
| Object | Chicago and Western Indiana Railroad |
—
|
NE NERFINISHED |
How this triple was built (3 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 Western Indiana Railroad | Statement: [Dearborn Station, railwayTerminusFor, Chicago and Western Indiana Railroad]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Chicago and Western Indiana Railroad Context triple: [Dearborn Station, railwayTerminusFor, Chicago and Western Indiana Railroad]
-
A.
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.
-
B.
Chicago, Indianapolis and Louisville Railway
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.
-
C.
Illinois Central Railroad
The Illinois Central Railroad was a major American rail carrier that played a pivotal role in connecting the Midwest to the Gulf of Mexico and fostering economic development along its north–south route.
-
D.
Chicago and Eastern Illinois Railroad
The Chicago and Eastern Illinois Railroad was a regional U.S. railroad that primarily served Illinois and neighboring states, later becoming part of the Missouri Pacific (MoPac) system.
-
E.
Illinois Terminal Railroad
Illinois Terminal Railroad was an interurban electric railway system that operated in central Illinois, providing both passenger and freight service during the early to mid-20th century.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Chicago and Western Indiana Railroad Target entity description: 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.
-
A.
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.
-
B.
Chicago, Indianapolis and Louisville Railway
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.
-
C.
Illinois Central Railroad
The Illinois Central Railroad was a major American rail carrier that played a pivotal role in connecting the Midwest to the Gulf of Mexico and fostering economic development along its north–south route.
-
D.
Chicago and Eastern Illinois Railroad
The Chicago and Eastern Illinois Railroad was a regional U.S. railroad that primarily served Illinois and neighboring states, later becoming part of the Missouri Pacific (MoPac) system.
-
E.
Illinois Terminal Railroad
Illinois Terminal Railroad was an interurban electric railway system that operated in central Illinois, providing both passenger and freight service during the early to mid-20th century.
- F. None of above. chosen
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.