Triple
T20911182
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Chicago–Wyoming coal routes |
E514948
|
entity |
| Predicate | partOf |
P40
|
FINISHED |
| Object | Chicago and North Western Railway freight network |
—
|
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 North Western Railway freight network | Statement: [Chicago–Wyoming coal routes, partOf, Chicago and North Western Railway freight network]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Chicago and North Western Railway freight network Context triple: [Chicago–Wyoming coal routes, partOf, Chicago and North Western Railway freight network]
-
A.
Chicago and North Western Railway commuter network
The Chicago and North Western Railway commuter network was a suburban passenger rail system serving the Chicago metropolitan area, operating multiple lines that connected downtown Chicago with its outlying communities.
-
B.
Chicago and North Western Railway corridor
The Chicago and North Western Railway corridor is a former Midwestern railroad route whose abandoned right-of-way has been repurposed in places, such as in Iowa, for recreational trails and other community uses.
-
C.
Chicago–Omaha main line
The Chicago–Omaha main line was a principal transcontinental rail corridor in the Midwestern United States, linking Chicago with Omaha and serving as a key route for both passenger and freight traffic.
-
D.
Chicago & North Western West Line
The Chicago & North Western West Line was a historic commuter rail route in the Chicago area that later became part of Metra’s Union Pacific West Line.
-
E.
Norfolk Southern Chicago Line
The Norfolk Southern Chicago Line is a major freight rail corridor in the Midwestern United States, forming part of Norfolk Southern Railway’s primary east–west route through the Chicago area.
- 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 North Western Railway freight network Target entity description: The Chicago and North Western Railway freight network was an extensive Midwestern rail system that moved large volumes of commodities—especially coal—between the Powder River Basin and industrial markets in the Chicago region and beyond.
-
A.
Chicago and North Western Railway commuter network
The Chicago and North Western Railway commuter network was a suburban passenger rail system serving the Chicago metropolitan area, operating multiple lines that connected downtown Chicago with its outlying communities.
-
B.
Chicago and North Western Railway corridor
The Chicago and North Western Railway corridor is a former Midwestern railroad route whose abandoned right-of-way has been repurposed in places, such as in Iowa, for recreational trails and other community uses.
-
C.
Chicago–Omaha main line
The Chicago–Omaha main line was a principal transcontinental rail corridor in the Midwestern United States, linking Chicago with Omaha and serving as a key route for both passenger and freight traffic.
-
D.
Chicago & North Western West Line
The Chicago & North Western West Line was a historic commuter rail route in the Chicago area that later became part of Metra’s Union Pacific West Line.
-
E.
Norfolk Southern Chicago Line
The Norfolk Southern Chicago Line is a major freight rail corridor in the Midwestern United States, forming part of Norfolk Southern Railway’s primary east–west route through the Chicago area.
- 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_69e0b4f9d5ec8190bb2bd27350ed341c |
completed | April 16, 2026, 10:07 a.m. |
| NER | Named-entity recognition | batch_69e6ec5e3f988190932956119197e3b1 |
completed | April 21, 2026, 3:17 a.m. |
Created at: April 16, 2026, 12:48 p.m.