Triple
T20179226
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Chicago–Twin Cities route |
E492680
|
entity |
| Predicate | servedByNamedTrain |
P138983
|
FINISHED |
| Object | Hiawatha (Milwaukee Road) |
—
|
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: Hiawatha (Milwaukee Road) | Statement: [Chicago–Twin Cities route, servedByNamedTrain, Hiawatha (Milwaukee Road)]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Hiawatha (Milwaukee Road) Context triple: [Chicago–Twin Cities route, servedByNamedTrain, Hiawatha (Milwaukee Road)]
-
A.
Hiawatha passenger trains of the Milwaukee Road
chosen
The Hiawatha passenger trains of the Milwaukee Road were a famed fleet of high-speed, streamlined Midwestern trains operated by the Chicago, Milwaukee, St. Paul and Pacific Railroad, renowned for their speed, comfort, and distinctive design in the mid-20th century.
-
B.
Milwaukee Road
The Milwaukee Road was a major American railroad that operated an extensive Midwestern and Pacific Northwest network, noted especially for its electrified mountain routes and eventual bankruptcy in the late 20th century.
-
C.
The Genesee Chief
The Genesee Chief was a mid-19th-century American steamship best known for its central role in the landmark 1851 U.S. Supreme Court admiralty case The Genesee Chief v. Fitzhugh.
-
D.
Illinois Zephyr
The Illinois Zephyr is a state-supported Amtrak passenger train that operates daily between Chicago and Quincy, Illinois, serving intermediate cities across the state.
-
E.
Twin Cities Zephyr
The Twin Cities Zephyr was a streamlined passenger train that provided fast, stylish service between Chicago and the Minneapolis–St. Paul "Twin Cities" during the mid-20th century.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: servedByNamedTrain Context triple: [Chicago–Twin Cities route, servedByNamedTrain, Hiawatha (Milwaukee Road)]
-
A.
servedByRailroad
Indicates that a location or facility is provided with transportation or service by a railroad line or company.
-
B.
servedByRailBranch
Indicates that a location or facility is connected to and provided service by a specific railway branch line.
-
C.
isRailServiceOf
Indicates that a particular rail service operates for, belongs to, or is provided by a specified entity (such as a route, operator, or network).
-
D.
railwayTypeServed
Indicates the type of railway system or service that a given entity (such as a station, line, or facility) is designed to serve or accommodate.
-
E.
railwayName
Indicates the name assigned to a specific railway or railway line in the relationship.
- F. None of above. chosen
Provenance (4 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_69da6268a034819081cbd9ea5a1c9475 |
completed | April 11, 2026, 3:02 p.m. |
| NER | Named-entity recognition | batch_69e668ed07c8819091bd9ffda237a91c |
completed | April 20, 2026, 5:57 p.m. |
| PD | Predicate disambiguation | batch_69e55b0c11cc8190836d1eee5945f000 |
completed | April 19, 2026, 10:45 p.m. |
| PDg | Predicate description generation | batch_69e56700b1a08190ace53cf95827d72d |
completed | April 19, 2026, 11:36 p.m. |
Created at: April 11, 2026, 11:36 p.m.