Triple
T16897504
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Haverford station |
E424344
|
entity |
| Predicate | formerRailwayLine |
P20480
|
FINISHED |
| Object | Pennsylvania Railroad Main Line |
E320819
|
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: Pennsylvania Railroad Main Line | Statement: [Haverford station, formerRailwayLine, Pennsylvania Railroad Main Line]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Pennsylvania Railroad Main Line Context triple: [Haverford station, formerRailwayLine, Pennsylvania Railroad Main Line]
-
A.
Philadelphia to Harrisburg Main Line
chosen
The Philadelphia to Harrisburg Main Line is an electrified passenger rail corridor in Pennsylvania connecting Philadelphia with the state capital of Harrisburg and forming a key segment of Amtrak and regional rail service.
-
B.
Panhandle Route of the Pennsylvania Railroad
The Panhandle Route of the Pennsylvania Railroad was a major historic rail line that connected Pittsburgh with the American Midwest, serving as an important freight and passenger corridor in the 19th and early 20th centuries.
-
C.
Pennsylvania Railroad Schuylkill Branch
The Pennsylvania Railroad Schuylkill Branch was a former rail line running along the Schuylkill River in the Philadelphia region, historically used for both passenger and freight service and later partly incorporated into modern commuter rail operations.
-
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.
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.
- 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_69d889da3e8c8190a2b118f383f0beac |
completed | April 10, 2026, 5:25 a.m. |
| NER | Named-entity recognition | batch_69e3c8d98c308190bcc0adc7797d1f40 |
completed | April 18, 2026, 6:09 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a00cfcd0db8819080d415a18b3435e2 |
completed | May 10, 2026, 6:34 p.m. |
Created at: April 10, 2026, 5:29 a.m.