Triple
T22065841
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Pennsylvania Railroad tracks |
E545265
|
entity |
| Predicate | includesMajorRoute |
P89731
|
FINISHED |
| Object | Pittsburgh–Chicago main line |
—
|
NE NERFINISHED |
How this triple was built (2 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: Pittsburgh–Chicago main line | Statement: [Pennsylvania Railroad tracks, includesMajorRoute, Pittsburgh–Chicago main line]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Pittsburgh–Chicago main line Context triple: [Pennsylvania Railroad tracks, includesMajorRoute, Pittsburgh–Chicago main line]
-
A.
Chicago–Buffalo main line
The Chicago–Buffalo main line was a key intercity rail corridor linking Chicago and Buffalo, serving as a major route for passenger and freight traffic across the Midwest and into the Northeast.
-
B.
Pittsburgh–Chicago route
chosen
The Pittsburgh–Chicago route was a major Pennsylvania Railroad passenger and freight corridor linking the industrial centers of Pittsburgh, Pennsylvania, and Chicago, Illinois.
-
C.
New York–Chicago main line
The New York–Chicago main line was a principal intercity rail corridor in the United States that connected the East Coast metropolis of New York City with the Midwestern hub of Chicago.
-
D.
Erie Railroad Main Line
The Erie Railroad Main Line was a major historic rail corridor in the northeastern United States that formed the core route of the former Erie Railroad between the New York City area and the Midwest.
-
E.
Huntington–Cincinnati main line
The Huntington–Cincinnati main line is a key Chesapeake and Ohio Railway route that connected Huntington, West Virginia, with Cincinnati, Ohio, serving as an important freight and passenger corridor in the region.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
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_69e11e344dfc81909b1d88a7221329c7 |
completed | April 16, 2026, 5:36 p.m. |
| NER | Named-entity recognition | batch_69f12883d2108190a6127783f8f635fc |
completed | April 28, 2026, 9:37 p.m. |
Created at: April 16, 2026, 8:27 p.m.