Triple
T11698719
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Chicago South Shore and South Bend Railroad |
E278064
|
entity |
| Predicate | historicalChicagoTerminal |
P101319
|
FINISHED |
| Object |
Illinois Central Railroad terminal
The Illinois Central Railroad terminal was a major passenger rail hub in downtown Chicago that served as a key gateway for regional and long-distance trains in the late 19th and early 20th centuries.
|
E939694
|
NE FINISHED |
How this triple was built (5 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: Illinois Central Railroad terminal | Statement: [Chicago South Shore and South Bend Railroad, historicalChicagoTerminal, Illinois Central Railroad terminal]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Illinois Central Railroad terminal Context triple: [Chicago South Shore and South Bend Railroad, historicalChicagoTerminal, Illinois Central Railroad terminal]
-
A.
Chicago, Burlington and Quincy Railroad station
Chicago, Burlington and Quincy Railroad station was the original name of what is now known as Hinsdale station, a historic commuter rail stop in Hinsdale, Illinois that once served the CB&Q Railroad.
-
B.
Randolph/Wabash station
Randolph/Wabash station was a former elevated Chicago "L" station in the Loop that served multiple train lines before being closed and replaced by the modern Washington/Wabash station.
-
C.
Peoria station
Peoria station is a commuter rail stop in the Denver metropolitan area that serves as part of the A Line connecting downtown Denver with Denver International Airport.
-
D.
Washington/Wabash station
Washington/Wabash station is a Chicago 'L' rapid transit station in the Loop that serves multiple elevated lines and replaced the former Randolph/Wabash and Madison/Wabash stations.
-
E.
Illinois Terminal (multimodal transportation center)
Illinois Terminal is a major multimodal transportation center in Champaign, Illinois, serving as a hub for intercity buses, Amtrak trains, and local transit services.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg
Description generation
gpt-5.1
Instruction
Generate a one-sentence description of the target entity. You are given a context triple in the form (subject, predicate, object), where the object is the target entity. # Instructions Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. Avoid repeating the information from the triple, unless really essential. # Response Format Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Illinois Central Railroad terminal Triple: [Chicago South Shore and South Bend Railroad, historicalChicagoTerminal, Illinois Central Railroad terminal]
Generated description
The Illinois Central Railroad terminal was a major passenger rail hub in downtown Chicago that served as a key gateway for regional and long-distance trains in the late 19th and early 20th centuries.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Illinois Central Railroad terminal Target entity description: The Illinois Central Railroad terminal was a major passenger rail hub in downtown Chicago that served as a key gateway for regional and long-distance trains in the late 19th and early 20th centuries.
-
A.
Chicago, Burlington and Quincy Railroad station
Chicago, Burlington and Quincy Railroad station was the original name of what is now known as Hinsdale station, a historic commuter rail stop in Hinsdale, Illinois that once served the CB&Q Railroad.
-
B.
Randolph/Wabash station
Randolph/Wabash station was a former elevated Chicago "L" station in the Loop that served multiple train lines before being closed and replaced by the modern Washington/Wabash station.
-
C.
Peoria station
Peoria station is a commuter rail stop in the Denver metropolitan area that serves as part of the A Line connecting downtown Denver with Denver International Airport.
-
D.
Washington/Wabash station
Washington/Wabash station is a Chicago 'L' rapid transit station in the Loop that serves multiple elevated lines and replaced the former Randolph/Wabash and Madison/Wabash stations.
-
E.
Illinois Terminal (multimodal transportation center)
Illinois Terminal is a major multimodal transportation center in Champaign, Illinois, serving as a hub for intercity buses, Amtrak trains, and local transit services.
- F. None of above. chosen
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: historicalChicagoTerminal Context triple: [Chicago South Shore and South Bend Railroad, historicalChicagoTerminal, Illinois Central Railroad terminal]
-
A.
historicalTerminus
Indicates that one entity serves as the historically recognized endpoint or final limit of another entity, such as a route, period, or process.
-
B.
designatedChicagoLandmark
Indicates that an entity has been officially recognized and designated as a Chicago landmark.
-
C.
terminusStation
Indicates that a station serves as the final endpoint or terminal stop for a given route or service.
-
D.
communityAreaOfChicago
Indicates that a given entity is one of the officially designated community areas within the city of Chicago.
-
E.
ChicagoLandmarkDesignationYear
Indicates the year in which an entity was officially designated as a Chicago landmark.
- F. None of above. chosen
Provenance (7 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_69d6aafe02d881909900d54ad7d4af84 |
completed | April 8, 2026, 7:22 p.m. |
| NER | Named-entity recognition | batch_69d8a47df68c81908a91919a69b4880d |
completed | April 10, 2026, 7:19 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ef147e2e10819085eaed83fd955b6b |
completed | April 27, 2026, 7:47 a.m. |
| NEDg | Description generation | batch_69ef3553a1748190b554463bcea8bd1d |
completed | April 27, 2026, 10:07 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69ef51fe3824819099f440426d3e6888 |
completed | April 27, 2026, 12:09 p.m. |
| PD | Predicate disambiguation | batch_69d88a7b30948190b616a9db5c5488d5 |
completed | April 10, 2026, 5:28 a.m. |
| PDg | Predicate description generation | batch_69d89546a8688190b51455b5e12caf91 |
completed | April 10, 2026, 6:14 a.m. |
Created at: April 8, 2026, 9:40 p.m.