Triple

T142159
Position Surface form Disambiguated ID Type / Status
Subject Arlington National Cemetery E2876 entity
Predicate formerOwnerOfLand P3526 FINISHED
Object Mary Anna Custis Lee
Mary Anna Custis Lee was the wife of Confederate General Robert E. Lee and the great-granddaughter of Martha Washington, known as a prominent 19th-century Virginia aristocrat and plantation mistress.
E20304 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: Mary Anna Custis Lee | Statement: [Arlington National Cemetery, formerOwnerOfLand, Mary Anna Custis Lee]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Mary Anna Custis Lee
Context triple: [Arlington National Cemetery, formerOwnerOfLand, Mary Anna Custis Lee]
  • A. Elizabeth Virginia Wallace
    Elizabeth Virginia Wallace, better known as Bess Truman, was the First Lady of the United States from 1945 to 1953 as the wife of President Harry S. Truman.
  • B. Martha Washington
    Martha Washington was the first First Lady of the United States, a wealthy widow who managed large estates and played a key role as a social and political hostess during George Washington’s leadership.
  • C. Henry Middleton
    Henry Middleton was an American planter and political leader from South Carolina who briefly served as a leading figure in the early stages of the American Revolution.
  • D. Mary Todd Lincoln
    Mary Todd Lincoln was the First Lady of the United States during Abraham Lincoln’s presidency, known for her political influence, personal tragedies, and controversial public image during and after the Civil War.
  • E. Mary Burwell
    Mary Burwell was an English gentlewoman best known as the mother of Sir Robert Walpole, Britain’s first de facto Prime Minister.
  • 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: Mary Anna Custis Lee
Triple: [Arlington National Cemetery, formerOwnerOfLand, Mary Anna Custis Lee]
Generated description
Mary Anna Custis Lee was the wife of Confederate General Robert E. Lee and the great-granddaughter of Martha Washington, known as a prominent 19th-century Virginia aristocrat and plantation mistress.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Mary Anna Custis Lee
Target entity description: Mary Anna Custis Lee was the wife of Confederate General Robert E. Lee and the great-granddaughter of Martha Washington, known as a prominent 19th-century Virginia aristocrat and plantation mistress.
  • A. Elizabeth Virginia Wallace
    Elizabeth Virginia Wallace, better known as Bess Truman, was the First Lady of the United States from 1945 to 1953 as the wife of President Harry S. Truman.
  • B. Martha Washington
    Martha Washington was the first First Lady of the United States, a wealthy widow who managed large estates and played a key role as a social and political hostess during George Washington’s leadership.
  • C. Henry Middleton
    Henry Middleton was an American planter and political leader from South Carolina who briefly served as a leading figure in the early stages of the American Revolution.
  • D. Mary Todd Lincoln
    Mary Todd Lincoln was the First Lady of the United States during Abraham Lincoln’s presidency, known for her political influence, personal tragedies, and controversial public image during and after the Civil War.
  • E. Mary Burwell
    Mary Burwell was an English gentlewoman best known as the mother of Sir Robert Walpole, Britain’s first de facto Prime Minister.
  • 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_69a2521e35c08190b28e5c9f1e3c9b59 completed Feb. 28, 2026, 2:25 a.m.
NER Named-entity recognition batch_69a25bab43608190ba5ebfbee6b5b6e4 completed Feb. 28, 2026, 3:06 a.m.
NED1 Entity disambiguation (via context triple) batch_69a2d73164e48190b993fe55aaba30be completed Feb. 28, 2026, 11:53 a.m.
NEDg Description generation batch_69a2da25fb648190bc31b5689cfaf95c completed Feb. 28, 2026, 12:05 p.m.
NED2 Entity disambiguation (via description) batch_69a2daa879408190937f8b292389646f completed Feb. 28, 2026, 12:08 p.m.
Created at: Feb. 28, 2026, 2:31 a.m.