Triple

T93543
Position Surface form Disambiguated ID Type / Status
Subject Subrahmanyan Chandrasekhar E1879 entity
Predicate employer P7 FINISHED
Object Yerkes Observatory
Yerkes Observatory is a historic astronomical observatory in Wisconsin renowned for housing one of the world’s largest refracting telescopes and for its influential role in 20th-century astrophysical research.
E17797 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: Yerkes Observatory | Statement: [Subrahmanyan Chandrasekhar, employer, Yerkes Observatory]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Yerkes Observatory
Context triple: [Subrahmanyan Chandrasekhar, employer, Yerkes Observatory]
  • A. 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.
  • B. Swope Telescope
    The Swope Telescope is a 1-meter-class optical telescope at Chile’s Las Campanas Observatory, known for its role in supernova and transient object discoveries.
  • C. Cerro Tololo Inter-American Observatory
    Cerro Tololo Inter-American Observatory is a major astronomical observatory complex in northern Chile that hosts multiple world-class telescopes used for cutting-edge research on the universe.
  • D. Adler Planetarium
    Adler Planetarium is a major public museum and research institution dedicated to astronomy and space science, located on the shore of Lake Michigan in Chicago.
  • E. du Pont Telescope
    The du Pont Telescope is a 2.5-meter optical telescope at Chile’s Las Campanas Observatory used for a wide range of astronomical imaging and spectroscopic research.
  • 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: Yerkes Observatory
Triple: [Subrahmanyan Chandrasekhar, employer, Yerkes Observatory]
Generated description
Yerkes Observatory is a historic astronomical observatory in Wisconsin renowned for housing one of the world’s largest refracting telescopes and for its influential role in 20th-century astrophysical research.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Yerkes Observatory
Target entity description: Yerkes Observatory is a historic astronomical observatory in Wisconsin renowned for housing one of the world’s largest refracting telescopes and for its influential role in 20th-century astrophysical research.
  • A. 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.
  • B. Swope Telescope
    The Swope Telescope is a 1-meter-class optical telescope at Chile’s Las Campanas Observatory, known for its role in supernova and transient object discoveries.
  • C. Cerro Tololo Inter-American Observatory
    Cerro Tololo Inter-American Observatory is a major astronomical observatory complex in northern Chile that hosts multiple world-class telescopes used for cutting-edge research on the universe.
  • D. Adler Planetarium
    Adler Planetarium is a major public museum and research institution dedicated to astronomy and space science, located on the shore of Lake Michigan in Chicago.
  • E. du Pont Telescope
    The du Pont Telescope is a 2.5-meter optical telescope at Chile’s Las Campanas Observatory used for a wide range of astronomical imaging and spectroscopic research.
  • 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_69a24d1a97dc819094e6c021fe9b05a7 completed Feb. 28, 2026, 2:04 a.m.
NER Named-entity recognition batch_69a24fd28e988190bde699647ee5b16b completed Feb. 28, 2026, 2:15 a.m.
NED1 Entity disambiguation (via context triple) batch_69a2c272c04481909ad035b719ac4798 completed Feb. 28, 2026, 10:24 a.m.
NEDg Description generation batch_69a2c44e144c819084b65ec9283f5ca6 completed Feb. 28, 2026, 10:32 a.m.
NED2 Entity disambiguation (via description) batch_69a2c4a49b288190b10a54aa37160e31 completed Feb. 28, 2026, 10:34 a.m.
Created at: Feb. 28, 2026, 2:07 a.m.