Triple
T15582588
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Pennsylvania Railroad freight cars |
E374536
|
entity |
| Predicate | usedOn |
P2367
|
FINISHED |
| Object | Pennsylvania Railroad main line |
E8353
|
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: [Pennsylvania Railroad freight cars, usedOn, Pennsylvania Railroad main line]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Pennsylvania Railroad main line Context triple: [Pennsylvania Railroad freight cars, usedOn, Pennsylvania Railroad main line]
-
A.
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.
-
B.
New York Central Railroad main line
The New York Central Railroad main line, famously known as the Water Level Route, was a major U.S. rail corridor connecting the Midwest to the East Coast along relatively flat terrain that followed river valleys and the Great Lakes.
-
C.
Southern Main Line
The Southern Main Line is a major Swedish railway route that connects key cities in the southern part of the country and serves as an important corridor for both passenger and freight traffic.
-
D.
Main Line (Philadelphia to Pittsburgh)
chosen
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.
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.
- 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_69d85ccd575081908909b71a3f3e3a61 |
completed | April 10, 2026, 2:13 a.m. |
| NER | Named-entity recognition | batch_69e04e45ee3c8190a6aee06a5805ca39 |
completed | April 16, 2026, 2:49 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ff4c4f71e48190a15eb0a2138f083f |
completed | May 9, 2026, 3:01 p.m. |
Created at: April 10, 2026, 4:11 a.m.