Triple
T15598689
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Pennsylvania Railroad passenger cars |
E374972
|
entity |
| Predicate | manufacturer |
P490
|
FINISHED |
| Object | Pennsylvania Railroad Altoona Works |
E76912
|
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 Altoona Works | Statement: [Pennsylvania Railroad passenger cars, manufacturer, Pennsylvania Railroad Altoona Works]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Pennsylvania Railroad Altoona Works Context triple: [Pennsylvania Railroad passenger cars, manufacturer, Pennsylvania Railroad Altoona Works]
-
A.
Pennsylvania Railroad Altoona Works
chosen
Pennsylvania Railroad Altoona Works was a major locomotive and railcar manufacturing and maintenance complex in Altoona, Pennsylvania, renowned as one of the most important railroad shops in the United States.
-
B.
Pennsylvania Railroad Mechanical Department
The Pennsylvania Railroad Mechanical Department was the in-house engineering division of the Pennsylvania Railroad responsible for designing and developing its locomotives and rolling stock.
-
C.
Pennsylvania Railroad laboratories
Pennsylvania Railroad laboratories were the research and testing facilities of the Pennsylvania Railroad, where scientific and engineering studies were conducted to improve railroad materials, equipment, and operations.
-
D.
Pittsburgh Locomotive and Car Works
Pittsburgh Locomotive and Car Works was a prominent 19th-century American manufacturer of steam locomotives and railroad cars that later became part of the American Locomotive Company.
-
E.
Manchester Locomotive Works
Manchester Locomotive Works was a prominent 19th-century American manufacturer of steam locomotives that later became part of the American Locomotive Company (ALCO).
- 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_69d85cce25008190b13b52745fbd719b |
completed | April 10, 2026, 2:13 a.m. |
| NER | Named-entity recognition | batch_69e04e609ab081909feb486a57439960 |
completed | April 16, 2026, 2:50 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ff56ccc40c8190a3b1339404e6897f |
completed | May 9, 2026, 3:46 p.m. |
Created at: April 10, 2026, 4:12 a.m.