Triple

T4938072
Position Surface form Disambiguated ID Type / Status
Subject Carolyn Bessette-Kennedy E110860 entity
Predicate deathEvent P7377 FINISHED
Object 1999 Martha's Vineyard plane crash
The 1999 Martha's Vineyard plane crash was the fatal aviation accident off the coast of Massachusetts that killed John F. Kennedy Jr., his wife Carolyn Bessette-Kennedy, and her sister Lauren Bessette.
E481721 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: 1999 Martha's Vineyard plane crash | Statement: [Carolyn Bessette-Kennedy, deathEvent, 1999 Martha's Vineyard plane crash]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: 1999 Martha's Vineyard plane crash
Context triple: [Carolyn Bessette-Kennedy, deathEvent, 1999 Martha's Vineyard plane crash]
  • A. 2009 Fort Totten crash
    The 2009 Fort Totten crash was a deadly rear-end collision between two Washington Metro trains on the Red Line in Washington, D.C., that became the system’s worst accident and prompted major safety reforms.
  • B. Ramstein airshow disaster
    The Ramstein airshow disaster was a 1988 mid-air collision and crash during an air display in Germany that killed dozens of spectators and became one of the deadliest airshow accidents in history.
  • C. Chappaquiddick Island landing
    Chappaquiddick Island landing is the small ferry terminal on Chappaquiddick Island, Massachusetts, where the Chappy Ferry brings passengers and vehicles across the narrow channel from Edgartown on Martha’s Vineyard.
  • D. 2020 Calabasas helicopter crash
    The 2020 Calabasas helicopter crash was a fatal accident in Southern California that killed basketball legend Kobe Bryant, his daughter Gianna, and seven others, prompting widespread global mourning and scrutiny of helicopter safety practices.
  • E. Chappaquiddick incident
    The Chappaquiddick incident was a 1969 car accident on Chappaquiddick Island involving Senator Edward M. Kennedy that resulted in the death of Mary Jo Kopechne and had lasting political repercussions for Kennedy's career.
  • 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: 1999 Martha's Vineyard plane crash
Triple: [Carolyn Bessette-Kennedy, deathEvent, 1999 Martha's Vineyard plane crash]
Generated description
The 1999 Martha's Vineyard plane crash was the fatal aviation accident off the coast of Massachusetts that killed John F. Kennedy Jr., his wife Carolyn Bessette-Kennedy, and her sister Lauren Bessette.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: 1999 Martha's Vineyard plane crash
Target entity description: The 1999 Martha's Vineyard plane crash was the fatal aviation accident off the coast of Massachusetts that killed John F. Kennedy Jr., his wife Carolyn Bessette-Kennedy, and her sister Lauren Bessette.
  • A. 2009 Fort Totten crash
    The 2009 Fort Totten crash was a deadly rear-end collision between two Washington Metro trains on the Red Line in Washington, D.C., that became the system’s worst accident and prompted major safety reforms.
  • B. Ramstein airshow disaster
    The Ramstein airshow disaster was a 1988 mid-air collision and crash during an air display in Germany that killed dozens of spectators and became one of the deadliest airshow accidents in history.
  • C. Chappaquiddick Island landing
    Chappaquiddick Island landing is the small ferry terminal on Chappaquiddick Island, Massachusetts, where the Chappy Ferry brings passengers and vehicles across the narrow channel from Edgartown on Martha’s Vineyard.
  • D. 2020 Calabasas helicopter crash
    The 2020 Calabasas helicopter crash was a fatal accident in Southern California that killed basketball legend Kobe Bryant, his daughter Gianna, and seven others, prompting widespread global mourning and scrutiny of helicopter safety practices.
  • E. Chappaquiddick incident
    The Chappaquiddick incident was a 1969 car accident on Chappaquiddick Island involving Senator Edward M. Kennedy that resulted in the death of Mary Jo Kopechne and had lasting political repercussions for Kennedy's career.
  • 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_69bd4415eee08190bdce70276e56a5b4 completed March 20, 2026, 12:56 p.m.
NER Named-entity recognition batch_69bd70872270819080769dad972681ef completed March 20, 2026, 4:06 p.m.
NED1 Entity disambiguation (via context triple) batch_69be77bcb8d881908d393223bdea145a completed March 21, 2026, 10:49 a.m.
NEDg Description generation batch_69be78747f3881908afe9cf276216bc5 completed March 21, 2026, 10:52 a.m.
NED2 Entity disambiguation (via description) batch_69be78d03aec81909a2470306ba90cb0 completed March 21, 2026, 10:54 a.m.
Created at: March 20, 2026, 1:31 p.m.