Triple

T1616561

Position	Surface form	Disambiguated ID	Type / Status
Subject	John George Vanderbilt Henry Spencer-Churchill, 11th Duke of Marlborough	`E34731`	entity
Predicate	nobleTitle	`P914`	FINISHED
Object	11th Duke of Marlborough The 11th Duke of Marlborough, John George Vanderbilt Henry Spencer-Churchill, was a British aristocrat and landowner who presided over Blenheim Palace and was a relative of both Sir Winston Churchill and the American Vanderbilt family.	`E227478`	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: 11th Duke of Marlborough | Statement: [John George Vanderbilt Henry Spencer-Churchill, 11th Duke of Marlborough, nobleTitle, 11th Duke of Marlborough]

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

Target entity: 11th Duke of Marlborough
Context triple: [John George Vanderbilt Henry Spencer-Churchill, 11th Duke of Marlborough, nobleTitle, 11th Duke of Marlborough]

A. 9th Duke of Marlborough
The 9th Duke of Marlborough, Charles Spencer-Churchill, was a British aristocrat and landowner best known for his stewardship of Blenheim Palace and his high-profile marriage to American heiress Consuelo Vanderbilt.
B. John Spencer-Churchill, 10th Duke of Marlborough
John Spencer-Churchill, 10th Duke of Marlborough, was a prominent British aristocrat and landowner of the late 19th and early 20th centuries, head of the Marlborough ducal line and custodian of Blenheim Palace.
C. George Spencer-Churchill, 5th Duke of Marlborough
George Spencer-Churchill, 5th Duke of Marlborough, was a British aristocrat and politician who served as Lord Chamberlain and was a prominent member of the influential Churchill-Marlborough lineage in the late 18th and early 19th centuries.
D. George Spencer-Churchill, 6th Duke of Marlborough
George Spencer-Churchill, 6th Duke of Marlborough, was a 19th-century British peer and politician who held the Marlborough dukedom before his more politically prominent son, the 7th Duke.
E. John Winston Spencer-Churchill, 7th Duke of Marlborough
John Winston Spencer-Churchill, 7th Duke of Marlborough, was a prominent 19th-century British Conservative politician and aristocrat who served as Lord Lieutenant of Ireland and was the grandfather of Prime Minister Winston Churchill.
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: 11th Duke of Marlborough
Triple: [John George Vanderbilt Henry Spencer-Churchill, 11th Duke of Marlborough, nobleTitle, 11th Duke of Marlborough]

Generated description

The 11th Duke of Marlborough, John George Vanderbilt Henry Spencer-Churchill, was a British aristocrat and landowner who presided over Blenheim Palace and was a relative of both Sir Winston Churchill and the American Vanderbilt family.

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

Target entity: 11th Duke of Marlborough
Target entity description: The 11th Duke of Marlborough, John George Vanderbilt Henry Spencer-Churchill, was a British aristocrat and landowner who presided over Blenheim Palace and was a relative of both Sir Winston Churchill and the American Vanderbilt family.

A. 9th Duke of Marlborough
The 9th Duke of Marlborough, Charles Spencer-Churchill, was a British aristocrat and landowner best known for his stewardship of Blenheim Palace and his high-profile marriage to American heiress Consuelo Vanderbilt.
B. John Spencer-Churchill, 10th Duke of Marlborough
John Spencer-Churchill, 10th Duke of Marlborough, was a prominent British aristocrat and landowner of the late 19th and early 20th centuries, head of the Marlborough ducal line and custodian of Blenheim Palace.
C. George Spencer-Churchill, 5th Duke of Marlborough
George Spencer-Churchill, 5th Duke of Marlborough, was a British aristocrat and politician who served as Lord Chamberlain and was a prominent member of the influential Churchill-Marlborough lineage in the late 18th and early 19th centuries.
D. George Spencer-Churchill, 6th Duke of Marlborough
George Spencer-Churchill, 6th Duke of Marlborough, was a 19th-century British peer and politician who held the Marlborough dukedom before his more politically prominent son, the 7th Duke.
E. John Winston Spencer-Churchill, 7th Duke of Marlborough
John Winston Spencer-Churchill, 7th Duke of Marlborough, was a prominent 19th-century British Conservative politician and aristocrat who served as Lord Lieutenant of Ireland and was the grandfather of Prime Minister Winston Churchill.
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_69a885ffc5ec819091afa325d5f9611c`	completed	March 4, 2026, 7:20 p.m.
NER	Named-entity recognition	`batch_69a909abbec081908f95547471530ad5`	completed	March 5, 2026, 4:42 a.m.
NED1	Entity disambiguation (via context triple)	`batch_69ae1fb8b14c8190abbcc24f17fa8243`	completed	March 9, 2026, 1:17 a.m.
NEDg	Description generation	`batch_69ae204fe6148190915219beb27128bc`	completed	March 9, 2026, 1:20 a.m.
NED2	Entity disambiguation (via description)	`batch_69ae20d09c748190aebbfb88f0eedbaa`	completed	March 9, 2026, 1:22 a.m.

Created at: March 4, 2026, 7:28 p.m.