Triple
T20530836
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Southern Pacific GS-4 |
E504061
|
entity |
| Predicate | fleetNumbers |
P44071
|
FINISHED |
| Object |
SP 4451
SP 4451 is a Southern Pacific GS-4 class streamlined steam locomotive that served in high-speed passenger service in the mid-20th century American West.
|
E1451356
|
NE FINISHED |
How this triple was built (4 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: SP 4451 | Statement: [Southern Pacific GS-4, fleetNumbers, SP 4451]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: SP 4451 Context triple: [Southern Pacific GS-4, fleetNumbers, SP 4451]
-
A.
SP 4441
SP 4441 is a Southern Pacific GS-4 class streamlined steam locomotive that operated in high-speed passenger service in the mid-20th century American West.
-
B.
SP 4445
SP 4445 is a specific locomotive from the Southern Pacific Railroad’s GS-4 class of streamlined 4-8-4 steam engines used in high-speed passenger service in the mid-20th century.
-
C.
SP 4442
SP 4442 is a Southern Pacific GS-4 class streamlined steam locomotive that operated in high-speed passenger service in the mid-20th century American West.
-
D.
SP 4443
SP 4443 is a specific locomotive from the Southern Pacific Railroad’s GS-4 class of streamlined 4-8-4 steam engines, known for their distinctive design and use on premier passenger trains in the mid-20th century.
-
E.
SP 4449
SP 4449 is a preserved Southern Pacific GS-4 class streamlined steam locomotive famous for its striking Daylight paint scheme and use in excursion service.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg
Description generation
gpt-5.1
Instruction
Generate a one-sentence description of the target entity. You are given a context triple in the form (subject, predicate, object), where the object is the target entity. # Instructions Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. Avoid repeating the information from the triple, unless really essential. # Response Format Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: SP 4451 Triple: [Southern Pacific GS-4, fleetNumbers, SP 4451]
Generated description
SP 4451 is a Southern Pacific GS-4 class streamlined steam locomotive that served in high-speed passenger service in the mid-20th century American West.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: SP 4451 Target entity description: SP 4451 is a Southern Pacific GS-4 class streamlined steam locomotive that served in high-speed passenger service in the mid-20th century American West.
-
A.
SP 4441
SP 4441 is a Southern Pacific GS-4 class streamlined steam locomotive that operated in high-speed passenger service in the mid-20th century American West.
-
B.
SP 4445
SP 4445 is a specific locomotive from the Southern Pacific Railroad’s GS-4 class of streamlined 4-8-4 steam engines used in high-speed passenger service in the mid-20th century.
-
C.
SP 4442
SP 4442 is a Southern Pacific GS-4 class streamlined steam locomotive that operated in high-speed passenger service in the mid-20th century American West.
-
D.
SP 4443
SP 4443 is a specific locomotive from the Southern Pacific Railroad’s GS-4 class of streamlined 4-8-4 steam engines, known for their distinctive design and use on premier passenger trains in the mid-20th century.
-
E.
SP 4449
SP 4449 is a preserved Southern Pacific GS-4 class streamlined steam locomotive famous for its striking Daylight paint scheme and use in excursion service.
- F. None of above. chosen
Provenance (5 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_69e0b4b3a6e08190ae663701f50fab8e |
completed | April 16, 2026, 10:06 a.m. |
| NER | Named-entity recognition | batch_69e6a06b923c81908ba24be6645a7c61 |
completed | April 20, 2026, 9:53 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a08f8a4c6b8819080d4244c194fc60c |
completed | May 16, 2026, 11:07 p.m. |
| NEDg | Description generation | batch_6a08fa684b688190a3f68da03658daea |
completed | May 16, 2026, 11:14 p.m. |
| NED2 | Entity disambiguation (via description) | batch_6a08fae12c088190aaeb705258089204 |
completed | May 16, 2026, 11:16 p.m. |
Created at: April 16, 2026, 11:37 a.m.