Triple

T603960
Position Surface form Disambiguated ID Type / Status
Subject Ernst Alexanderson E11555 entity
Predicate developed P73 FINISHED
Object Alexanderson alternator
The Alexanderson alternator is an early high-frequency radio transmitter that generated continuous-wave signals using a rotating machine, playing a key role in long-distance wireless communication before vacuum-tube oscillators.
 E75687 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: Alexanderson alternator | Statement: [Ernst Alexanderson, developed, Alexanderson alternator]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Alexanderson alternator
Context triple: [Ernst Alexanderson, developed, Alexanderson alternator]
  • A. Fleming valve
    The Fleming valve is an early thermionic vacuum tube diode invented by John Ambrose Fleming that enabled the rectification and detection of radio signals, laying groundwork for modern electronics.
  • B. Edison
    Edison is a large, diverse township in central New Jersey known for its suburban communities, major transportation links, and historical association with inventor Thomas Edison.
  • C. George Westinghouse
    George Westinghouse was an American inventor and industrialist best known for pioneering railway air brakes and promoting alternating current (AC) power systems.
  • D. Volta Laboratory
    Volta Laboratory was an experimental research facility established in the late 19th century that became a key center for innovation in sound recording, telephony, and related communication technologies.
  • E. Charles Proteus Steinmetz
    Charles Proteus Steinmetz was a pioneering German-American electrical engineer and mathematician whose work on alternating current (AC) systems and electrical theory greatly advanced modern power engineering.
  • 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: Alexanderson alternator
Triple: [Ernst Alexanderson, developed, Alexanderson alternator]
Generated description
The Alexanderson alternator is an early high-frequency radio transmitter that generated continuous-wave signals using a rotating machine, playing a key role in long-distance wireless communication before vacuum-tube oscillators.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Alexanderson alternator
Target entity description: The Alexanderson alternator is an early high-frequency radio transmitter that generated continuous-wave signals using a rotating machine, playing a key role in long-distance wireless communication before vacuum-tube oscillators.
  • A. Fleming valve
    The Fleming valve is an early thermionic vacuum tube diode invented by John Ambrose Fleming that enabled the rectification and detection of radio signals, laying groundwork for modern electronics.
  • B. Edison
    Edison is a large, diverse township in central New Jersey known for its suburban communities, major transportation links, and historical association with inventor Thomas Edison.
  • C. George Westinghouse
    George Westinghouse was an American inventor and industrialist best known for pioneering railway air brakes and promoting alternating current (AC) power systems.
  • D. Volta Laboratory
    Volta Laboratory was an experimental research facility established in the late 19th century that became a key center for innovation in sound recording, telephony, and related communication technologies.
  • E. Charles Proteus Steinmetz
    Charles Proteus Steinmetz was a pioneering German-American electrical engineer and mathematician whose work on alternating current (AC) systems and electrical theory greatly advanced modern power engineering.
  • 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_69a4932779b881908688590d59c71900 completed March 1, 2026, 7:27 p.m.
NER Named-entity recognition batch_69a49dc67b248190b0bb195553f03be8 completed March 1, 2026, 8:12 p.m.
NED1 Entity disambiguation (via context triple) batch_69a523898af08190bfa7e73ab6e1c7f3 completed March 2, 2026, 5:43 a.m.
NEDg Description generation batch_69a5242b276c8190a136453a02d59e0a completed March 2, 2026, 5:46 a.m.
NED2 Entity disambiguation (via description) batch_69a5248026bc819094065322e0930098 completed March 2, 2026, 5:47 a.m.
Created at: March 1, 2026, 7:35 p.m.