Triple
T20530824
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Southern Pacific GS-4 |
E504061
|
entity |
| Predicate | fleetNumbers |
P44071
|
FINISHED |
| Object |
SP 4439
SP 4439 is a specific Southern Pacific GS-4 class streamlined steam locomotive that once hauled high-speed passenger trains in the western United States.
|
E1435704
|
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 4439 | Statement: [Southern Pacific GS-4, fleetNumbers, SP 4439]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: SP 4439 Context triple: [Southern Pacific GS-4, fleetNumbers, SP 4439]
-
A.
SP 4249
SP 4249 is a Southern Pacific Railroad AC-11 class articulated steam locomotive, part of the railroad’s famous cab-forward fleet used primarily in heavy freight service.
-
B.
SP 4247
SP 4247 is a Southern Pacific Railroad AC-11 class articulated steam locomotive, part of the railroad’s well-known cab-forward fleet used primarily in heavy freight service.
-
C.
SP 4263
SP 4263 is a Southern Pacific Railroad AC-11 class articulated steam locomotive, part of the railroad’s famous cab-forward fleet used primarily in heavy freight service.
-
D.
SP 4267
SP 4267 is a preserved Southern Pacific AC-11 class articulated steam locomotive, notable as one of the railroad’s powerful cab-forward engines used in heavy freight service.
-
E.
SP 4279
SP 4279 is a Southern Pacific Railroad EMD SD9 diesel-electric locomotive preserved and operated by the Niles Canyon Railway in California.
- 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 4439 Triple: [Southern Pacific GS-4, fleetNumbers, SP 4439]
Generated description
SP 4439 is a specific Southern Pacific GS-4 class streamlined steam locomotive that once hauled high-speed passenger trains in the western United States.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: SP 4439 Target entity description: SP 4439 is a specific Southern Pacific GS-4 class streamlined steam locomotive that once hauled high-speed passenger trains in the western United States.
-
A.
SP 4249
SP 4249 is a Southern Pacific Railroad AC-11 class articulated steam locomotive, part of the railroad’s famous cab-forward fleet used primarily in heavy freight service.
-
B.
SP 4247
SP 4247 is a Southern Pacific Railroad AC-11 class articulated steam locomotive, part of the railroad’s well-known cab-forward fleet used primarily in heavy freight service.
-
C.
SP 4263
SP 4263 is a Southern Pacific Railroad AC-11 class articulated steam locomotive, part of the railroad’s famous cab-forward fleet used primarily in heavy freight service.
-
D.
SP 4267
SP 4267 is a preserved Southern Pacific AC-11 class articulated steam locomotive, notable as one of the railroad’s powerful cab-forward engines used in heavy freight service.
-
E.
SP 4279
SP 4279 is a Southern Pacific Railroad EMD SD9 diesel-electric locomotive preserved and operated by the Niles Canyon Railway in California.
- 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_6a089d4a828481909085772ef81a2348 |
completed | May 16, 2026, 4:37 p.m. |
| NEDg | Description generation | batch_6a089e8473188190956a0817cd7bbae0 |
completed | May 16, 2026, 4:42 p.m. |
| NED2 | Entity disambiguation (via description) | batch_6a089f04483481908fe015bd7514af35 |
completed | May 16, 2026, 4:44 p.m. |
Created at: April 16, 2026, 11:37 a.m.