Triple

T20539111

Position	Surface form	Disambiguated ID	Type / Status
Subject	Douglas DC-5	`E504278`	entity
Predicate	powerplant	`P9904`	FINISHED
Object	Pratt & Whitney R-1820 radial engine The Pratt & Whitney R-1820 is a single-row, nine-cylinder air-cooled radial aircraft engine widely used in many American military and civilian aircraft from the 1930s through World War II.	`E1437453`	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: Pratt & Whitney R-1820 radial engine | Statement: [Douglas DC-5, powerplant, Pratt & Whitney R-1820 radial engine]

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: Pratt & Whitney R-1820 radial engine
Context triple: [Douglas DC-5, powerplant, Pratt & Whitney R-1820 radial engine]

A. Pratt & Whitney R-1830 Twin Wasp radial engine
The Pratt & Whitney R-1830 Twin Wasp is a widely used American 14-cylinder air-cooled radial aircraft engine of the World War II era, powering numerous fighters, bombers, and transport aircraft.
B. Wright R-1820 radial engine
The Wright R-1820 radial engine is a widely used American air-cooled, nine-cylinder aircraft engine that powered numerous military and civilian aircraft from the 1930s through World War II and beyond.
C. Pratt & Whitney Wasp radial engine
The Pratt & Whitney Wasp radial engine is a pioneering air-cooled aircraft engine introduced in the 1920s, renowned for its reliability and widespread use in early commercial and military airplanes.
D. Pratt & Whitney R-1535 Twin Wasp Junior radial engine
The Pratt & Whitney R-1535 Twin Wasp Junior is a 14-cylinder, air-cooled radial aircraft engine developed in the 1930s, widely used in high-performance racing and military aircraft of its era.
E. Wright R-3350 Duplex-Cyclone radial engine
The Wright R-3350 Duplex-Cyclone is a powerful American 18-cylinder air-cooled radial aircraft engine widely used in World War II and early postwar bombers and airliners.
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: Pratt & Whitney R-1820 radial engine
Triple: [Douglas DC-5, powerplant, Pratt & Whitney R-1820 radial engine]

Generated description

The Pratt & Whitney R-1820 is a single-row, nine-cylinder air-cooled radial aircraft engine widely used in many American military and civilian aircraft from the 1930s through World War II.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: Pratt & Whitney R-1820 radial engine
Target entity description: The Pratt & Whitney R-1820 is a single-row, nine-cylinder air-cooled radial aircraft engine widely used in many American military and civilian aircraft from the 1930s through World War II.

A. Pratt & Whitney R-1830 Twin Wasp radial engine
The Pratt & Whitney R-1830 Twin Wasp is a widely used American 14-cylinder air-cooled radial aircraft engine of the World War II era, powering numerous fighters, bombers, and transport aircraft.
B. Wright R-1820 radial engine
The Wright R-1820 radial engine is a widely used American air-cooled, nine-cylinder aircraft engine that powered numerous military and civilian aircraft from the 1930s through World War II and beyond.
C. Pratt & Whitney Wasp radial engine
The Pratt & Whitney Wasp radial engine is a pioneering air-cooled aircraft engine introduced in the 1920s, renowned for its reliability and widespread use in early commercial and military airplanes.
D. Pratt & Whitney R-1535 Twin Wasp Junior radial engine
The Pratt & Whitney R-1535 Twin Wasp Junior is a 14-cylinder, air-cooled radial aircraft engine developed in the 1930s, widely used in high-performance racing and military aircraft of its era.
E. Wright R-3350 Duplex-Cyclone radial engine
The Wright R-3350 Duplex-Cyclone is a powerful American 18-cylinder air-cooled radial aircraft engine widely used in World War II and early postwar bombers and airliners.
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_69e0b4b476648190bc6019622ae54d3c`	completed	April 16, 2026, 10:06 a.m.
NER	Named-entity recognition	`batch_69e6a290bd8c819091988f511fb5820b`	completed	April 20, 2026, 10:02 p.m.
NED1	Entity disambiguation (via context triple)	`batch_6a08a566091c81908f545c6ffac06246`	completed	May 16, 2026, 5:12 p.m.
NEDg	Description generation	`batch_6a08a6fabbf4819081702969a53b2076`	completed	May 16, 2026, 5:18 p.m.
NED2	Entity disambiguation (via description)	`batch_6a08a779983881909f1c0354e2054634`	completed	May 16, 2026, 5:20 p.m.

Created at: April 16, 2026, 11:37 a.m.