Triple

T12584192
Position Surface form Disambiguated ID Type / Status
Subject Carl Ludvig Engel E300413 entity
Predicate notableWork P4 FINISHED
Object Helsinki Observatory
Helsinki Observatory is a 19th-century astronomical observatory in Helsinki, Finland, renowned as a key example of neoclassical architecture and a historic center of Finnish astronomy.
 E991682 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: Helsinki Observatory | Statement: [Carl Ludvig Engel, notableWork, Helsinki Observatory]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Helsinki Observatory
Context triple: [Carl Ludvig Engel, notableWork, Helsinki Observatory]
  • A. Königsberg Observatory
    Königsberg Observatory was a prominent 19th-century astronomical observatory in Königsberg, Prussia, known especially for Friedrich Bessel’s pioneering work in stellar parallax and precision astrometry.
  • B. University of Tartu Old Observatory
    The University of Tartu Old Observatory is a historic 19th-century astronomical observatory in Tartu, Estonia, renowned for its role in early astrophysical research and as a landmark of Baltic scientific heritage.
  • C. Saltsjöbaden Observatory
    Saltsjöbaden Observatory is a Swedish astronomical observatory near Stockholm, historically used for solar and stellar research and associated with Stockholm University.
  • D. Pulkovo Observatory
    Pulkovo Observatory is a historic astronomical observatory near Saint Petersburg, Russia, renowned as a major center for astronomical research and geodesy since the 19th century.
  • E. Heidelberg-Königstuhl State Observatory
    The Heidelberg-Königstuhl State Observatory is a historic astronomical observatory in Heidelberg, Germany, renowned for its early 20th-century discoveries of asteroids and comets.
  • 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: Helsinki Observatory
Triple: [Carl Ludvig Engel, notableWork, Helsinki Observatory]
Generated description
Helsinki Observatory is a 19th-century astronomical observatory in Helsinki, Finland, renowned as a key example of neoclassical architecture and a historic center of Finnish astronomy.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Helsinki Observatory
Target entity description: Helsinki Observatory is a 19th-century astronomical observatory in Helsinki, Finland, renowned as a key example of neoclassical architecture and a historic center of Finnish astronomy.
  • A. Königsberg Observatory
    Königsberg Observatory was a prominent 19th-century astronomical observatory in Königsberg, Prussia, known especially for Friedrich Bessel’s pioneering work in stellar parallax and precision astrometry.
  • B. University of Tartu Old Observatory
    The University of Tartu Old Observatory is a historic 19th-century astronomical observatory in Tartu, Estonia, renowned for its role in early astrophysical research and as a landmark of Baltic scientific heritage.
  • C. Saltsjöbaden Observatory
    Saltsjöbaden Observatory is a Swedish astronomical observatory near Stockholm, historically used for solar and stellar research and associated with Stockholm University.
  • D. Pulkovo Observatory
    Pulkovo Observatory is a historic astronomical observatory near Saint Petersburg, Russia, renowned as a major center for astronomical research and geodesy since the 19th century.
  • E. Heidelberg-Königstuhl State Observatory
    The Heidelberg-Königstuhl State Observatory is a historic astronomical observatory in Heidelberg, Germany, renowned for its early 20th-century discoveries of asteroids and comets.
  • 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_69d7bde87b648190bcd0266e9efde098 completed April 9, 2026, 2:55 p.m.
NER Named-entity recognition batch_69d954bac9708190ad8f277e7751bf5c completed April 10, 2026, 7:51 p.m.
NED1 Entity disambiguation (via context triple) batch_69f65ebcfca8819083c26a3d5f94ccdf completed May 2, 2026, 8:29 p.m.
NEDg Description generation batch_69f65faf33e0819092df07a5fa98cb73 completed May 2, 2026, 8:33 p.m.
NED2 Entity disambiguation (via description) batch_69f66036f520819098af75cd5578d573 completed May 2, 2026, 8:36 p.m.
Created at: April 9, 2026, 5:04 p.m.