Triple
T14917269
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | PRR K2 |
E371411
|
entity |
| Predicate | successorClass |
P10131
|
FINISHED |
| Object | PRR K4s Pacific |
E76330
|
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: PRR K4s Pacific | Statement: [PRR K2, successorClass, PRR K4s Pacific]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: PRR K4s Pacific Context triple: [PRR K2, successorClass, PRR K4s Pacific]
-
A.
PRR K4s
chosen
The PRR K4s was a class of iconic 4-6-2 "Pacific" steam locomotives that served as the primary passenger power for the Pennsylvania Railroad in the first half of the 20th century.
-
B.
PRR K2
The PRR K2 was an early class of steam locomotives used by the Pennsylvania Railroad, serving as a predecessor to the more famous K4s Pacific-type engines.
-
C.
Southern Pacific GS-4
The Southern Pacific GS-4 is a class of streamlined 4-8-4 "Northern" steam locomotives built in the 1940s for the Southern Pacific Railroad, renowned for their distinctive orange and red "Daylight" livery and high-speed passenger service.
-
D.
Standard Passenger Pacific of the PRR
The "Standard Passenger Pacific of the PRR" refers to the Pennsylvania Railroad’s K4s class, a highly successful and iconic 4-6-2 steam locomotive that became the railroad’s primary passenger engine in the early to mid-20th century.
-
E.
Southern Pacific GS-3
The Southern Pacific GS-3 was a class of streamlined 4-8-4 "Northern" type steam locomotives built in the late 1930s for high-speed passenger service on the Southern Pacific Railroad.
- 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_69d85cc7ea3481908228b5acb7d06f12 |
completed | April 10, 2026, 2:13 a.m. |
| NER | Named-entity recognition | batch_69ded62038508190946499cd3552990e |
completed | April 15, 2026, 12:04 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69fe8bd1a4548190a14e246ab69ed21c |
completed | May 9, 2026, 1:20 a.m. |
Created at: April 10, 2026, 2:32 a.m.