Triple
T21123123
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Elkton station (Maryland) |
E520482
|
entity |
| Predicate | servedRoute |
P1293
|
FINISHED |
| Object | Baltimore–Philadelphia route |
—
|
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: Baltimore–Philadelphia route | Statement: [Elkton station (Maryland), servedRoute, Baltimore–Philadelphia route]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Baltimore–Philadelphia route Context triple: [Elkton station (Maryland), servedRoute, Baltimore–Philadelphia route]
-
A.
Baltimore–Harrisburg corridor
The Baltimore–Harrisburg corridor is a key Mid-Atlantic transportation and economic region linking Baltimore, Maryland with Harrisburg, Pennsylvania.
-
B.
Philadelphia–Camden corridor
The Philadelphia–Camden corridor is a major bi-state urban and transportation axis linking Philadelphia, Pennsylvania, with Camden, New Jersey, and surrounding communities.
-
C.
Winslow Junction–Atlantic City route
The Winslow Junction–Atlantic City route is a rail line in southern New Jersey that connects the inland junction at Winslow with the coastal resort city of Atlantic City.
-
D.
Main Line (Philadelphia to Pittsburgh)
Main Line (Philadelphia to Pittsburgh) was a major east–west rail corridor across Pennsylvania that formed the core route linking Philadelphia and Pittsburgh and became central to the state’s transportation and economic development.
-
E.
Washington–Baltimore rail corridor
The Washington–Baltimore rail corridor is a heavily traveled rail route linking the U.S. capital with Baltimore, used by both passenger and freight services and forming a key segment of the Northeast transportation network.
- 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: Baltimore–Philadelphia route Target entity description: The Baltimore–Philadelphia route is a historic rail corridor in the Mid-Atlantic United States that connects Baltimore, Maryland, with Philadelphia, Pennsylvania, and includes intermediate stops such as Elkton, Maryland.
-
A.
Baltimore–Harrisburg corridor
The Baltimore–Harrisburg corridor is a key Mid-Atlantic transportation and economic region linking Baltimore, Maryland with Harrisburg, Pennsylvania.
-
B.
Philadelphia–Camden corridor
The Philadelphia–Camden corridor is a major bi-state urban and transportation axis linking Philadelphia, Pennsylvania, with Camden, New Jersey, and surrounding communities.
-
C.
Winslow Junction–Atlantic City route
The Winslow Junction–Atlantic City route is a rail line in southern New Jersey that connects the inland junction at Winslow with the coastal resort city of Atlantic City.
-
D.
Main Line (Philadelphia to Pittsburgh)
Main Line (Philadelphia to Pittsburgh) was a major east–west rail corridor across Pennsylvania that formed the core route linking Philadelphia and Pittsburgh and became central to the state’s transportation and economic development.
-
E.
Washington–Baltimore rail corridor
The Washington–Baltimore rail corridor is a heavily traveled rail route linking the U.S. capital with Baltimore, used by both passenger and freight services and forming a key segment of the Northeast transportation network.
- 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_69e0b50a623881909c0bbaf4f2c055e7 |
completed | April 16, 2026, 10:08 a.m. |
| NER | Named-entity recognition | batch_69e72236b2d88190bef9f0cd6924ca92 |
completed | April 21, 2026, 7:07 a.m. |
Created at: April 16, 2026, 2:55 p.m.