Triple

T24638063

Position	Surface form	Disambiguated ID	Type / Status
Subject	EMD 645-series diesel engine	`E609867`	entity
Predicate	usedInLocomotiveSeries	`P156871`	FINISHED
Object	EMD GP39 The EMD GP39 is a four-axle diesel-electric road switcher locomotive built by General Motors’ Electro-Motive Division in the late 1960s and early 1970s for freight service on North American railroads.	`E1685249`	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: EMD GP39 | Statement: [EMD 645-series diesel engine, usedInLocomotiveSeries, EMD GP39]

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: EMD GP39
Triple: [EMD 645-series diesel engine, usedInLocomotiveSeries, EMD GP39]

Generated description

The EMD GP39 is a four-axle diesel-electric road switcher locomotive built by General Motors’ Electro-Motive Division in the late 1960s and early 1970s for freight service on North American railroads.

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_69e2c4d28f848190ac38c400060e943d`	completed	April 17, 2026, 11:40 p.m.
NER	Named-entity recognition	`batch_69f40f7f76288190badd669ed3221a03`	completed	May 1, 2026, 2:27 a.m.
NED1	Entity disambiguation (via context triple)	`batch_6a10ad26d9708190837e274390a9a54a`	completed	May 22, 2026, 7:23 p.m.
NEDg	Description generation	`batch_6a10ae0e67c0819087189306e39cdbc7`	completed	May 22, 2026, 7:27 p.m.
NED2	Entity disambiguation (via description)	`batch_6a10ae851d548190a19c0f9293b99e24`	completed	May 22, 2026, 7:29 p.m.

Created at: April 18, 2026, 2:33 a.m.