Triple
T20179314
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Twin Cities Zephyr |
E492682
|
entity |
| Predicate | operatedOnRoute |
P21808
|
FINISHED |
| Object | Chicago–Twin Cities corridor |
—
|
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–Twin Cities corridor | Statement: [Twin Cities Zephyr, operatedOnRoute, Chicago–Twin Cities corridor]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Chicago–Twin Cities corridor Context triple: [Twin Cities Zephyr, operatedOnRoute, Chicago–Twin Cities corridor]
-
A.
Chicago–Milwaukee metropolitan corridor
The Chicago–Milwaukee metropolitan corridor is a heavily urbanized and economically integrated region stretching along Lake Michigan between Chicago, Illinois, and Milwaukee, Wisconsin.
-
B.
Minneapolis–Bloomington corridor
The Minneapolis–Bloomington corridor is a major urban transit and development axis in Minnesota linking downtown Minneapolis with the city of Bloomington and key destinations such as the Mall of America.
-
C.
Chicago–St. Louis corridor
The Chicago–St. Louis corridor is a major Midwestern passenger rail route linking Chicago, Illinois, with St. Louis, Missouri, and serving as a key segment of Amtrak’s intercity service.
-
D.
Chicago–Quad Cities corridor
The Chicago–Quad Cities corridor is a major transportation and economic link in northern Illinois connecting the Chicago metropolitan area with the Quad Cities region along the Mississippi River.
-
E.
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.
- 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–Twin Cities corridor Target entity description: The Chicago–Twin Cities corridor is a major passenger and freight rail route linking Chicago, Illinois, with the Minneapolis–Saint Paul metropolitan area in Minnesota.
-
A.
Chicago–Milwaukee metropolitan corridor
The Chicago–Milwaukee metropolitan corridor is a heavily urbanized and economically integrated region stretching along Lake Michigan between Chicago, Illinois, and Milwaukee, Wisconsin.
-
B.
Minneapolis–Bloomington corridor
The Minneapolis–Bloomington corridor is a major urban transit and development axis in Minnesota linking downtown Minneapolis with the city of Bloomington and key destinations such as the Mall of America.
-
C.
Chicago–St. Louis corridor
The Chicago–St. Louis corridor is a major Midwestern passenger rail route linking Chicago, Illinois, with St. Louis, Missouri, and serving as a key segment of Amtrak’s intercity service.
-
D.
Chicago–Quad Cities corridor
The Chicago–Quad Cities corridor is a major transportation and economic link in northern Illinois connecting the Chicago metropolitan area with the Quad Cities region along the Mississippi River.
-
E.
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.
- 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_69da6268a034819081cbd9ea5a1c9475 |
completed | April 11, 2026, 3:02 p.m. |
| NER | Named-entity recognition | batch_69e668edf27881909820f9103e72533e |
completed | April 20, 2026, 5:57 p.m. |
Created at: April 11, 2026, 11:36 p.m.