Triple
T1069689
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Philadelphia, Germantown and Norristown Railroad |
E23295
|
entity |
| Predicate | successor |
P78
|
FINISHED |
| Object | Pennsylvania Railroad system |
E435
|
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 system | Statement: [Philadelphia, Germantown and Norristown Railroad, successor, Pennsylvania Railroad system]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Pennsylvania Railroad system Context triple: [Philadelphia, Germantown and Norristown Railroad, successor, Pennsylvania Railroad system]
-
A.
Pennsylvania Railroad Company
chosen
The Pennsylvania Railroad Company was one of the largest and most influential American railroads of the 19th and early 20th centuries, playing a central role in the industrial development of the United States.
-
B.
Baltimore and Ohio Railroad
The Baltimore and Ohio Railroad was one of the earliest and most influential American railroads, playing a key role in the development of U.S. transportation and commerce in the 19th and early 20th centuries.
-
C.
Baltimore and Susquehanna Railroad
The Baltimore and Susquehanna Railroad was an early 19th-century American railroad that helped pioneer rail transportation in Maryland and Pennsylvania, eventually becoming part of the Northern Central Railway system.
-
D.
Pennsylvania Railroad Lines East
Pennsylvania Railroad Lines East was the eastern operating division of the Pennsylvania Railroad, managing its passenger and freight services across key routes in the northeastern United States.
-
E.
Philadelphia, Wilmington and Baltimore Railroad
The Philadelphia, Wilmington and Baltimore Railroad was a 19th-century rail line that formed a key segment of the main corridor linking the northeastern United States, particularly connecting Philadelphia with points south.
- 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_69a493ee1f908190992b5f0d1b04459b |
completed | March 1, 2026, 7:30 p.m. |
| NER | Named-entity recognition | batch_69a4b914b4908190886d6698294c6b5b |
completed | March 1, 2026, 10:09 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ac599c08f481908b720e2cc7c4a5ef |
completed | March 7, 2026, 5 p.m. |
Created at: March 1, 2026, 7:42 p.m.