Triple

T20530832
Position Surface form Disambiguated ID Type / Status
Subject Southern Pacific GS-4 E504061 entity
Predicate fleetNumbers P44071 FINISHED
Object SP 4447
SP 4447 is a Southern Pacific GS-4 class streamlined steam locomotive that operated in high-speed passenger service in the mid-20th century American West.
 E1446912 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 4447 | Statement: [Southern Pacific GS-4, fleetNumbers, SP 4447]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: SP 4447
Context triple: [Southern Pacific GS-4, fleetNumbers, SP 4447]
  • A. 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.
  • B. 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.
  • C. 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.
  • D. SP 4446
    SP 4446 is a Southern Pacific GS-4 class streamlined steam locomotive that served in high-speed passenger service in the mid-20th century American West.
  • E. 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.
  • 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 4447
Triple: [Southern Pacific GS-4, fleetNumbers, SP 4447]
Generated description
SP 4447 is a Southern Pacific GS-4 class streamlined steam locomotive that operated 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 4447
Target entity description: SP 4447 is a Southern Pacific GS-4 class streamlined steam locomotive that operated in high-speed passenger service in the mid-20th century American West.
  • A. 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.
  • B. 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.
  • C. 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.
  • D. SP 4446
    SP 4446 is a Southern Pacific GS-4 class streamlined steam locomotive that served in high-speed passenger service in the mid-20th century American West.
  • E. 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.
  • 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_6a08e03cf7248190a0d9ff1f7eb03c74 completed May 16, 2026, 9:23 p.m.
NEDg Description generation batch_6a08e1b3a2308190972aafa7b57dbffe completed May 16, 2026, 9:29 p.m.
NED2 Entity disambiguation (via description) batch_6a08e22c1f848190aba772b8b86a457c completed May 16, 2026, 9:31 p.m.
Created at: April 16, 2026, 11:37 a.m.