Triple

T18884401
Position Surface form Disambiguated ID Type / Status
Subject 1964 Rameswaram cyclone E461921 entity
Predicate basin P5506 FINISHED
Object North Indian Ocean — NE NERFINISHED

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: North Indian Ocean | Statement: [1964 Rameswaram cyclone, basin, North Indian Ocean]

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: North Indian Ocean
Context triple: [1964 Rameswaram cyclone, basin, North Indian Ocean]
  • A. Arabian Sea
    The Arabian Sea is a region of the northern Indian Ocean located between the Arabian Peninsula and the Indian subcontinent, serving as a major historical route for trade and cultural exchange.
  • B. Indian Ocean
    The Indian Ocean is the world’s third-largest ocean, lying between Africa, Asia, Australia, and the Southern Ocean, and serving as a major route for global trade and maritime activity.
  • C. Western Indian Ocean
    The Western Indian Ocean is a maritime region encompassing the coastal waters and island states along the eastern coast of Africa and adjacent islands, notable for its rich marine biodiversity and strategic trade routes.
  • D. Southwest Indian Ocean
    The Southwest Indian Ocean is a region of the Indian Ocean off the southeastern coast of Africa, known for its strong western boundary currents, complex eddies, and significant role in global ocean circulation and climate.
  • E. tropical Indian Ocean
    The tropical Indian Ocean is a warm, low-latitude oceanic region characterized by strong monsoonal influences, active convection, and a major role in global climate variability.
  • 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: North Indian Ocean
Target entity description: The North Indian Ocean is the region of the Indian Ocean north of the equator, including the Arabian Sea and Bay of Bengal, known for producing some of the world's most intense and deadly tropical cyclones.
  • A. Arabian Sea
    The Arabian Sea is a region of the northern Indian Ocean located between the Arabian Peninsula and the Indian subcontinent, serving as a major historical route for trade and cultural exchange.
  • B. Indian Ocean
    The Indian Ocean is the world’s third-largest ocean, lying between Africa, Asia, Australia, and the Southern Ocean, and serving as a major route for global trade and maritime activity.
  • C. Western Indian Ocean
    The Western Indian Ocean is a maritime region encompassing the coastal waters and island states along the eastern coast of Africa and adjacent islands, notable for its rich marine biodiversity and strategic trade routes.
  • D. Southwest Indian Ocean
    The Southwest Indian Ocean is a region of the Indian Ocean off the southeastern coast of Africa, known for its strong western boundary currents, complex eddies, and significant role in global ocean circulation and climate.
  • E. tropical Indian Ocean
    The tropical Indian Ocean is a warm, low-latitude oceanic region characterized by strong monsoonal influences, active convection, and a major role in global climate variability.
  • F. None of above. chosen

Provenance (2 batches)

Stage Batch ID Job type Status
creating batch_69d8dcfc3430819095ee6fc0eb4c06a5 elicitation completed
NER batch_69e5c3d3dcec8190a468162c6a4482f6 ner completed
Created at: April 10, 2026, 11:57 a.m.