Triple

T16754970
Position Surface form Disambiguated ID Type / Status
Subject Karl Guthe Jansky E407184 entity
Predicate father P120 FINISHED
Object Karl Eugen Jansky
Karl Eugen Jansky was an American physicist and radio engineer whose discovery of radio waves from the Milky Way laid the foundations of radio astronomy.
 E407184 NE FINISHED

Named-entity recognition

Before disambiguation, gpt-5-mini classified whether the object phrase is a named entity — the step behind the object's NE type shown above.

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: Karl Eugen Jansky | Statement: [Karl Guthe Jansky, father, Karl Eugen Jansky]

Disambiguation candidates (2 decisions)

The exact options the model was shown at each disambiguation step, with the option it chose highlighted — the evidence behind this triple's disambiguated ids.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Karl Eugen Jansky
Context triple: [Karl Guthe Jansky, father, Karl Eugen Jansky]
  • A. Karl Guthe Jansky
    Karl Guthe Jansky was an American physicist and radio engineer who pioneered radio astronomy by discovering radio waves emanating from the Milky Way.
  • B. Grote Reber
    Grote Reber was an American radio engineer and pioneering radio astronomer who built the first purpose-built radio telescope and helped establish radio astronomy as a scientific field.
  • C. Harold Weiss
    Harold Weiss is a personal name shared by multiple individuals, and without additional context it does not refer to a single widely recognized public figure.
  • D. Johann Kraus
    Johann Kraus is a disembodied ectoplasmic medium and paranormal investigator in the Hellboy universe, known for his work with the Bureau for Paranormal Research and Defense.
  • E. Thomas Graham Kahn
    Thomas Graham Kahn is a member of the Kahn family associated with renowned value investor Irving Kahn.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Karl Eugen Jansky
Target entity description: Karl Eugen Jansky was an American physicist and radio engineer whose discovery of radio waves from the Milky Way laid the foundations of radio astronomy.
  • A. Karl Guthe Jansky chosen
    Karl Guthe Jansky was an American physicist and radio engineer who pioneered radio astronomy by discovering radio waves emanating from the Milky Way.
  • B. Grote Reber
    Grote Reber was an American radio engineer and pioneering radio astronomer who built the first purpose-built radio telescope and helped establish radio astronomy as a scientific field.
  • C. Harold Weiss
    Harold Weiss is a personal name shared by multiple individuals, and without additional context it does not refer to a single widely recognized public figure.
  • D. Johann Kraus
    Johann Kraus is a disembodied ectoplasmic medium and paranormal investigator in the Hellboy universe, known for his work with the Bureau for Paranormal Research and Defense.
  • E. Thomas Graham Kahn
    Thomas Graham Kahn is a member of the Kahn family associated with renowned value investor Irving Kahn.
  • F. None of above.

How the object was described

The object's one-sentence description was generated by prompting gpt-5.1 with the object name and this triple as context.

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: Karl Eugen Jansky
Triple: [Karl Guthe Jansky, father, Karl Eugen Jansky]
Generated description
Karl Eugen Jansky was an American physicist and radio engineer whose discovery of radio waves from the Milky Way laid the foundations of radio astronomy.

Provenance (5 batches)

Stage Batch ID Job type Status
creating batch_69d8839174188190909f190097207065 elicitation completed
NER batch_69e3abe6b68c8190a5e2a11973f01b8e ner completed
NED1 batch_6a00aaf588bc8190adcc512eaa8d91e8 ned_source_triple completed
NED2 batch_6a00acc3a9dc819087e07e539760bf34 ned_description completed
NEDg batch_6a00ac0e10648190803bf962a4677104 nedg completed
Created at: April 10, 2026, 5:21 a.m.