Triple
T12728862
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Amtrak Pennsylvanian |
E304177
|
entity |
| Predicate | usesRailLine |
P848
|
FINISHED |
| Object | Pittsburgh Line |
E873988
|
NE FINISHED |
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 Line | Statement: [Amtrak Pennsylvanian, usesRailLine, Pittsburgh Line]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Pittsburgh Line Context triple: [Amtrak Pennsylvanian, usesRailLine, Pittsburgh Line]
-
A.
Norfolk Southern Pittsburgh Line
chosen
The Norfolk Southern Pittsburgh Line is a major freight rail corridor crossing Pennsylvania, known for its heavy traffic, steep grades, and key role in linking the U.S. East Coast with the Midwest.
-
B.
Western Main Line
The Western Main Line is one of Sweden’s principal railway routes, connecting Stockholm with major cities to the west and south, and serving as a key corridor for both passenger and freight traffic.
-
C.
Trenton Line
Trenton Line is a commuter rail service in the Philadelphia region operated by SEPTA Regional Rail, connecting Center City Philadelphia with Trenton, New Jersey.
-
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.
Keystone Corridor
Keystone Corridor is a major passenger rail route in Pennsylvania that connects Philadelphia with Harrisburg and other central Pennsylvania destinations.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (3 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_69d7bdf1426c8190a4402e1c4cdec33a |
completed | April 9, 2026, 2:55 p.m. |
| NER | Named-entity recognition | batch_69d964172490819080cd022ff8290b6e |
completed | April 10, 2026, 8:56 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69f684e7dec08190b522a8f3bfde6fe2 |
completed | May 2, 2026, 11:12 p.m. |
Created at: April 9, 2026, 5:25 p.m.