Triple

T13489779
Position Surface form Disambiguated ID Type / Status
Subject Roosevelt Island (Antarctica) E318602 entity
Predicate discoveryExpedition P73131 FINISHED
Object United States Antarctic Service Expedition (1939–1941) E362684 NE FINISHED

How this triple was built (2 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: United States Antarctic Service Expedition (1939–1941) | Statement: [Roosevelt Island (Antarctica), discoveryExpedition, United States Antarctic Service Expedition (1939–1941)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: United States Antarctic Service Expedition (1939–1941)
Context triple: [Roosevelt Island (Antarctica), discoveryExpedition, United States Antarctic Service Expedition (1939–1941)]
  • A. United States Antarctic Service Expedition chosen
    The United States Antarctic Service Expedition was a U.S. government-sponsored Antarctic exploration program (1939–1941) led by Rear Admiral Richard E. Byrd that conducted extensive geographic and scientific surveys on the continent.
  • B. Byrd Antarctic Expedition I
    Byrd Antarctic Expedition I was a pioneering late-1920s American scientific and exploratory mission to Antarctica led by aviator and polar explorer Richard E. Byrd, notable for its extensive use of aircraft and radio.
  • C. Byrd Antarctic Expedition II
    Byrd Antarctic Expedition II was a 1933–1935 American scientific and exploratory mission to Antarctica led by polar explorer Rear Admiral Richard E. Byrd, focused on geographic discovery, meteorology, and advancing polar aviation.
  • D. Amundsen–Ellsworth–Nobile expedition
    The Amundsen–Ellsworth–Nobile expedition was a 1926 polar venture led by Roald Amundsen, Lincoln Ellsworth, and Umberto Nobile that achieved the first verified crossing of the Arctic Ocean by airship.
  • E. Commonwealth Trans-Antarctic Expedition
    The Commonwealth Trans-Antarctic Expedition was a 1955–1958 British-led mission that achieved the first overland crossing of Antarctica via the South Pole.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (3 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_69d806b6bfec819089222715b2e86c8e completed April 9, 2026, 8:06 p.m.
NER Named-entity recognition batch_69dbaf3cbe2081908c6792362c67c8f1 completed April 12, 2026, 2:42 p.m.
NED1 Entity disambiguation (via context triple) batch_69f75483a6f88190b3815fb8d97e65e4 completed May 3, 2026, 1:58 p.m.
Created at: April 9, 2026, 9:43 p.m.