Triple

T4943444
Position Surface form Disambiguated ID Type / Status
Subject SN 1987A E110990 entity
Predicate progenitorStar P39736 FINISHED
Object Sanduleak -69 202
Sanduleak -69 202 was a blue supergiant star in the Large Magellanic Cloud that famously exploded as Supernova 1987A, the closest observed supernova in modern times.
E481644 NE FINISHED

How this triple was built (5 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: Sanduleak -69 202 | Statement: [SN 1987A, progenitorStar, Sanduleak -69 202]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Sanduleak -69 202
Context triple: [SN 1987A, progenitorStar, Sanduleak -69 202]
  • A. Sandon
    Sandon is a small rural village in the North Hertfordshire district of Hertfordshire, England, characterized by its agricultural surroundings and traditional English countryside setting.
  • B. Sand Saref
    Sand Saref is a seductive and morally ambiguous femme fatale from the comic-book-inspired film "The Spirit," known for her complex past with the titular hero and her pursuit of priceless artifacts.
  • C. Sandi
    Sandi is a given name, typically a variant of Sandy, used for both males and females.
  • D. Sabden
    Sabden is a small village and civil parish in Lancashire, England, situated in a valley near Pendle Hill and known for its scenic rural setting.
  • E. Sands
    Sands is a ruthless, manipulative CIA agent portrayed by Johnny Depp in the action film "Once Upon a Time in Mexico."
  • 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: Sanduleak -69 202
Triple: [SN 1987A, progenitorStar, Sanduleak -69 202]
Generated description
Sanduleak -69 202 was a blue supergiant star in the Large Magellanic Cloud that famously exploded as Supernova 1987A, the closest observed supernova in modern times.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Sanduleak -69 202
Target entity description: Sanduleak -69 202 was a blue supergiant star in the Large Magellanic Cloud that famously exploded as Supernova 1987A, the closest observed supernova in modern times.
  • A. Sandon
    Sandon is a small rural village in the North Hertfordshire district of Hertfordshire, England, characterized by its agricultural surroundings and traditional English countryside setting.
  • B. Sand Saref
    Sand Saref is a seductive and morally ambiguous femme fatale from the comic-book-inspired film "The Spirit," known for her complex past with the titular hero and her pursuit of priceless artifacts.
  • C. Sandi
    Sandi is a given name, typically a variant of Sandy, used for both males and females.
  • D. Sabden
    Sabden is a small village and civil parish in Lancashire, England, situated in a valley near Pendle Hill and known for its scenic rural setting.
  • E. Sands
    Sands is a ruthless, manipulative CIA agent portrayed by Johnny Depp in the action film "Once Upon a Time in Mexico."
  • F. None of above. chosen
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: progenitorStar
Context triple: [SN 1987A, progenitorStar, Sanduleak -69 202]
  • A. originalStar chosen
    Indicates that one entity is the initial or primary star from which another star or stellar object originates, is derived, or is otherwise based.
  • B. stellarMass
    Indicates the amount of mass an astronomical object has that is contained in its stars.
  • C. cataloguedAsStar
    Indicates that an object has been classified and recorded specifically as a star in a catalog or database.
  • D. stellarClass
    Indicates the spectral classification relationship between a star and its stellar class (e.g., O, B, A, F, G, K, M).
  • E. star
    Indicates that an entity has been given a special or highlighted status, often marking it as important, featured, or favorited in relation to others.
  • F. None of above.

Provenance (6 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_69bd441721cc819085c7e33fe0876818 completed March 20, 2026, 12:56 p.m.
NER Named-entity recognition batch_69bd70a7650c8190b046b65072fd8eae completed March 20, 2026, 4:07 p.m.
NED1 Entity disambiguation (via context triple) batch_69be77c421288190bcc2d9bfdfff7198 completed March 21, 2026, 10:49 a.m.
NEDg Description generation batch_69be79127e80819088a97e674991fc8b completed March 21, 2026, 10:55 a.m.
NED2 Entity disambiguation (via description) batch_69be7990fd048190b3d1acaa6e3bce90 completed March 21, 2026, 10:57 a.m.
PD Predicate disambiguation batch_69bd6c389b9881908ad7fb1c5393c1b1 completed March 20, 2026, 3:48 p.m.
Created at: March 20, 2026, 1:31 p.m.