Triple
T11698791
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Michigan City 11th Street station |
E278065
|
entity |
| Predicate | servesCorridor |
P2566
|
FINISHED |
| Object |
Chicago–South Bend corridor
The Chicago–South Bend corridor is a regional passenger rail route linking the Chicago metropolitan area with South Bend, Indiana, via intermediate communities in northern Indiana.
|
E941604
|
NE FINISHED |
How this triple was built (4 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–South Bend corridor | Statement: [Michigan City 11th Street station, servesCorridor, Chicago–South Bend corridor]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Chicago–South Bend corridor Context triple: [Michigan City 11th Street station, servesCorridor, Chicago–South Bend corridor]
-
A.
Chicago–Indianapolis corridor
The Chicago–Indianapolis corridor is a major Midwestern transportation route linking the metropolitan hubs of Chicago, Illinois and Indianapolis, Indiana by highway and rail.
-
B.
Chicago–Joliet corridor
The Chicago–Joliet corridor is a major commuter and freight rail route in northeastern Illinois connecting the city of Chicago with the city of Joliet through multiple suburban communities.
-
C.
Chicago–La Grange corridor
The Chicago–La Grange corridor is a key suburban rail route west of Chicago that has long served as a major commuter link between the city and its western suburbs.
-
D.
Chicago–Ann Arbor corridor
The Chicago–Ann Arbor corridor is a key Midwestern passenger rail route linking Chicago, Illinois with Ann Arbor, Michigan and other intermediate cities.
-
E.
Chicago–Aurora corridor
The Chicago–Aurora corridor is a heavily traveled suburban rail and commuter route linking downtown Chicago with the city of Aurora in Illinois.
- 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: Chicago–South Bend corridor Triple: [Michigan City 11th Street station, servesCorridor, Chicago–South Bend corridor]
Generated description
The Chicago–South Bend corridor is a regional passenger rail route linking the Chicago metropolitan area with South Bend, Indiana, via intermediate communities in northern Indiana.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Chicago–South Bend corridor Target entity description: The Chicago–South Bend corridor is a regional passenger rail route linking the Chicago metropolitan area with South Bend, Indiana, via intermediate communities in northern Indiana.
-
A.
Chicago–Indianapolis corridor
The Chicago–Indianapolis corridor is a major Midwestern transportation route linking the metropolitan hubs of Chicago, Illinois and Indianapolis, Indiana by highway and rail.
-
B.
Chicago–Joliet corridor
The Chicago–Joliet corridor is a major commuter and freight rail route in northeastern Illinois connecting the city of Chicago with the city of Joliet through multiple suburban communities.
-
C.
Chicago–La Grange corridor
The Chicago–La Grange corridor is a key suburban rail route west of Chicago that has long served as a major commuter link between the city and its western suburbs.
-
D.
Chicago–Ann Arbor corridor
The Chicago–Ann Arbor corridor is a key Midwestern passenger rail route linking Chicago, Illinois with Ann Arbor, Michigan and other intermediate cities.
-
E.
Chicago–Aurora corridor
The Chicago–Aurora corridor is a heavily traveled suburban rail and commuter route linking downtown Chicago with the city of Aurora in Illinois.
- F. None of above. chosen
Provenance (5 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_69ef833084988190b5004c93f68dc628 |
completed | April 27, 2026, 3:39 p.m. |
| NEDg | Description generation | batch_69ef9b673120819097b542bb9a8f8bdb |
completed | April 27, 2026, 5:22 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69efd683366881909dd9621e7c57d0be |
completed | April 27, 2026, 9:34 p.m. |
Created at: April 8, 2026, 9:40 p.m.