Triple

T250
Position Surface form Disambiguated ID Type / Status
Subject Carnegie Institution of Washington E4 entity
Predicate hasResearchCenter P40 FINISHED
Object Las Campanas Observatory
Las Campanas Observatory is a major astronomical observatory in Chile renowned for its high-quality observing conditions and its role in cutting-edge optical and infrared astronomy.
E55 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: Las Campanas Observatory | Statement: [Carnegie Institution of Washington, hasResearchCenter, Las Campanas Observatory]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Las Campanas Observatory
Context triple: [Carnegie Institution of Washington, hasResearchCenter, Las Campanas Observatory]
  • A. Carnegie Institution of Washington
    The Carnegie Institution of Washington is a private, nonprofit scientific research organization founded by Andrew Carnegie that supports advanced research across fields such as astronomy, biology, and earth sciences.
  • B. Massachusetts Institute of Technology
    The Massachusetts Institute of Technology is a world-renowned research university in Cambridge, Massachusetts, known for its pioneering work in science, engineering, and technology.
  • C. Cambridge, Massachusetts
    Cambridge, Massachusetts is a historic and academically renowned city just outside Boston, best known for being home to world-leading universities and research institutions.
  • D. Tufts College
    Tufts College is a private research university in Medford and Somerville, Massachusetts, known for its strong programs in the liberal arts, sciences, and international relations.
  • E. Belmont, Massachusetts, United States
    Belmont, Massachusetts, United States, is a suburban town just west of Boston known for its affluent residential character and strong public schools.
  • 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: Las Campanas Observatory
Triple: [Carnegie Institution of Washington, hasResearchCenter, Las Campanas Observatory]
Generated description
Las Campanas Observatory is a major astronomical observatory in Chile renowned for its high-quality observing conditions and its role in cutting-edge optical and infrared astronomy.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Las Campanas Observatory
Target entity description: Las Campanas Observatory is a major astronomical observatory in Chile renowned for its high-quality observing conditions and its role in cutting-edge optical and infrared astronomy.
  • A. Carnegie Institution of Washington
    The Carnegie Institution of Washington is a private, nonprofit scientific research organization founded by Andrew Carnegie that supports advanced research across fields such as astronomy, biology, and earth sciences.
  • B. Massachusetts Institute of Technology
    The Massachusetts Institute of Technology is a world-renowned research university in Cambridge, Massachusetts, known for its pioneering work in science, engineering, and technology.
  • C. Cambridge, Massachusetts
    Cambridge, Massachusetts is a historic and academically renowned city just outside Boston, best known for being home to world-leading universities and research institutions.
  • D. Tufts College
    Tufts College is a private research university in Medford and Somerville, Massachusetts, known for its strong programs in the liberal arts, sciences, and international relations.
  • E. Belmont, Massachusetts, United States
    Belmont, Massachusetts, United States, is a suburban town just west of Boston known for its affluent residential character and strong public schools.
  • F. None of above. chosen
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: hasResearchCenter
Context triple: [Carnegie Institution of Washington, hasResearchCenter, Las Campanas Observatory]
  • A. headquartersLocation
    Indicates the place where an organization’s main administrative center or principal office is located.
  • B. foundedOn
    Indicates that an entity was established, created, or brought into existence on a specific date or point in time.
  • C. fundedBy
    Indicates that an entity receives financial support or resources from another entity.
  • D. locatedIn chosen
    Indicates that one entity exists or is situated within the spatial, administrative, or conceptual boundaries of another entity.
  • E. hasRepresentationIn
    Indicates that one entity is represented, depicted, or encoded within another entity, such as a concept, object, or data structure having a corresponding representation in a specific medium or context.
  • 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_69a222a954e48190b48f126a67485661 completed Feb. 27, 2026, 11:03 p.m.
NER Named-entity recognition batch_69a228187e888190b2bb2aee9a69b61b completed Feb. 27, 2026, 11:26 p.m.
NED1 Entity disambiguation (via context triple) batch_69a22e1415b48190a3182c57c34189da completed Feb. 27, 2026, 11:51 p.m.
NEDg Description generation batch_69a22ef983988190837eee4bdefc9a66 completed Feb. 27, 2026, 11:55 p.m.
NED2 Entity disambiguation (via description) batch_69a22f462b40819097d61cba3c84cc10 completed Feb. 27, 2026, 11:56 p.m.
PD Predicate disambiguation batch_69a226e6f58881908808f6985f779c3c completed Feb. 27, 2026, 11:21 p.m.
Created at: Feb. 27, 2026, 11:04 p.m.