Triple

T21976546
Position Surface form Disambiguated ID Type / Status
Subject Tocho E542719 entity
Predicate hasObservationDeck P105 FINISHED
Object South Observation Deck — 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: South Observation Deck | Statement: [Tocho, hasObservationDeck, South Observation Deck]

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: South Observation Deck
Context triple: [Tocho, hasObservationDeck, South Observation Deck]
  • A. North Observation Deck
    The North Observation Deck is a public viewing area in Tokyo's Tokyo Metropolitan Government Building that offers panoramic cityscape views, including sights of Mount Fuji on clear days.
  • B. Observation Deck No. 1
    Observation Deck No. 1 is a popular scenic lookout point offering panoramic views over Japan’s famously clear Lake Mashu in Hokkaido.
  • C. Observation Deck No. 3
    Observation Deck No. 3 is a scenic viewing platform overlooking Japan’s famously clear Lake Mashu in Hokkaido’s Akan-Mashu National Park.
  • D. Shanghai Tower observation deck
    The Shanghai Tower observation deck is a high-altitude viewing platform in Shanghai’s tallest skyscraper, offering panoramic views over the Pudong skyline and the wider city.
  • E. SkyPod observation deck
    The SkyPod observation deck is one of the highest public viewing platforms in the world, offering panoramic views from near the top of Toronto’s CN Tower.
  • 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: South Observation Deck
Target entity description: The South Observation Deck is a public viewing platform in Tokyo's Tokyo Metropolitan Government Building that offers panoramic city views, including sights like Tokyo Tower and, on clear days, Mount Fuji.
  • A. North Observation Deck
    The North Observation Deck is a public viewing area in Tokyo's Tokyo Metropolitan Government Building that offers panoramic cityscape views, including sights of Mount Fuji on clear days.
  • B. Observation Deck No. 1
    Observation Deck No. 1 is a popular scenic lookout point offering panoramic views over Japan’s famously clear Lake Mashu in Hokkaido.
  • C. Observation Deck No. 3
    Observation Deck No. 3 is a scenic viewing platform overlooking Japan’s famously clear Lake Mashu in Hokkaido’s Akan-Mashu National Park.
  • D. Shanghai Tower observation deck
    The Shanghai Tower observation deck is a high-altitude viewing platform in Shanghai’s tallest skyscraper, offering panoramic views over the Pudong skyline and the wider city.
  • E. SkyPod observation deck
    The SkyPod observation deck is one of the highest public viewing platforms in the world, offering panoramic views from near the top of Toronto’s CN Tower.
  • F. None of above. chosen

Provenance (2 batches)

Stage Batch ID Job type Status
creating batch_69e0c48070988190909db97667b9a0ac elicitation completed
NER batch_69f12489889c81909c847cf2f6808d85 ner completed
Created at: April 16, 2026, 8:03 p.m.