Triple
T8542987
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Capitol Limited (historical) |
E202241
|
entity |
| Predicate | primaryRoute |
P6298
|
FINISHED |
| Object |
Washington, D.C.–Chicago route
The Washington, D.C.–Chicago route is a major intercity passenger rail corridor linking the U.S. capital with the Midwest hub of Chicago, historically served by trains such as the Capitol Limited.
|
E740678
|
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: Washington, D.C.–Chicago route | Statement: [Capitol Limited (historical), primaryRoute, Washington, D.C.–Chicago route]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Washington, D.C.–Chicago route Context triple: [Capitol Limited (historical), primaryRoute, Washington, D.C.–Chicago route]
-
A.
Pittsburgh–Chicago route
The Pittsburgh–Chicago route was a major Pennsylvania Railroad passenger and freight corridor linking the industrial centers of Pittsburgh, Pennsylvania, and Chicago, Illinois.
-
B.
Chicago–Cleveland route
The Chicago–Cleveland route is a major Midwestern rail corridor that historically linked Chicago, Illinois, with Cleveland, Ohio, serving as a key segment for passenger and freight traffic across the Great Lakes region.
-
C.
New York–St. Louis route
The New York–St. Louis route was a major intercity passenger and freight rail corridor in the United States that connected the East Coast with the Midwest.
-
D.
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.
-
E.
Chicago–Pacific Northwest route
The Chicago–Pacific Northwest route was a major transcontinental rail corridor linking Chicago with cities in the Pacific Northwest, historically operated by the Milwaukee Road.
- 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: Washington, D.C.–Chicago route Triple: [Capitol Limited (historical), primaryRoute, Washington, D.C.–Chicago route]
Generated description
The Washington, D.C.–Chicago route is a major intercity passenger rail corridor linking the U.S. capital with the Midwest hub of Chicago, historically served by trains such as the Capitol Limited.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Washington, D.C.–Chicago route Target entity description: The Washington, D.C.–Chicago route is a major intercity passenger rail corridor linking the U.S. capital with the Midwest hub of Chicago, historically served by trains such as the Capitol Limited.
-
A.
Pittsburgh–Chicago route
The Pittsburgh–Chicago route was a major Pennsylvania Railroad passenger and freight corridor linking the industrial centers of Pittsburgh, Pennsylvania, and Chicago, Illinois.
-
B.
Chicago–Cleveland route
The Chicago–Cleveland route is a major Midwestern rail corridor that historically linked Chicago, Illinois, with Cleveland, Ohio, serving as a key segment for passenger and freight traffic across the Great Lakes region.
-
C.
New York–St. Louis route
The New York–St. Louis route was a major intercity passenger and freight rail corridor in the United States that connected the East Coast with the Midwest.
-
D.
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.
-
E.
Chicago–Pacific Northwest route
The Chicago–Pacific Northwest route was a major transcontinental rail corridor linking Chicago with cities in the Pacific Northwest, historically operated by the Milwaukee Road.
- 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_69ca832461e88190a654c5e44e233aa8 |
completed | March 30, 2026, 2:05 p.m. |
| NER | Named-entity recognition | batch_69cbe6e381d4819084e230389a3ecb77 |
completed | March 31, 2026, 3:23 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ce6dabf9908190bb61ad4ddb953902 |
completed | April 2, 2026, 1:22 p.m. |
| NEDg | Description generation | batch_69ce6f02fabc819093b95e0d318c5649 |
completed | April 2, 2026, 1:28 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69ce6f9b12148190be55b3f5f2b518d9 |
completed | April 2, 2026, 1:31 p.m. |
Created at: March 30, 2026, 6:18 p.m.