Triple

T5718269
Position Surface form Disambiguated ID Type / Status
Subject Tokyo Metropolitan Government Building E126073 entity
Predicate hasNickname P39 FINISHED
Object Tocho
Tocho is the common nickname for the Tokyo Metropolitan Government Building, a prominent skyscraper complex in Shinjuku that houses Tokyo’s metropolitan administration and offers popular observation decks.
 E542719 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: Tocho | Statement: [Tokyo Metropolitan Government Building, hasNickname, Tocho]

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: Tocho
Context triple: [Tokyo Metropolitan Government Building, hasNickname, Tocho]
  • A. Takaro
    Takaro is a residential suburb located within the city of Palmerston North in New Zealand.
  • B. Chimariko
    Chimariko is an extinct Native American language once spoken by the Chimariko people in northwestern California.
  • C. Ōtoku
    Ōtoku was a Japanese era name (nengō) of the late 11th century, used during the reign of Emperor Shirakawa.
  • D. Hacha-Kekan
    Hacha-Kekan is a traditional cultural festival of the Karbi people that showcases their indigenous rituals, music, dance, and communal celebrations.
  • E. Asago
    Asago is a city in northern Hyōgo Prefecture, Japan, known for its mountainous scenery, historic castle ruins, and hot spring resorts.
  • 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: Tocho
Target entity description: Tocho is the common nickname for the Tokyo Metropolitan Government Building, a prominent skyscraper complex in Shinjuku that houses Tokyo’s metropolitan administration and offers popular observation decks.
  • A. Takaro
    Takaro is a residential suburb located within the city of Palmerston North in New Zealand.
  • B. Chimariko
    Chimariko is an extinct Native American language once spoken by the Chimariko people in northwestern California.
  • C. Ōtoku
    Ōtoku was a Japanese era name (nengō) of the late 11th century, used during the reign of Emperor Shirakawa.
  • D. Hacha-Kekan
    Hacha-Kekan is a traditional cultural festival of the Karbi people that showcases their indigenous rituals, music, dance, and communal celebrations.
  • E. Asago
    Asago is a city in northern Hyōgo Prefecture, Japan, known for its mountainous scenery, historic castle ruins, and hot spring resorts.
  • F. None of above. chosen

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: Tocho
Triple: [Tokyo Metropolitan Government Building, hasNickname, Tocho]
Generated description
Tocho is the common nickname for the Tokyo Metropolitan Government Building, a prominent skyscraper complex in Shinjuku that houses Tokyo’s metropolitan administration and offers popular observation decks.

Provenance (5 batches)

Stage Batch ID Job type Status
creating batch_69c0082e3d548190950169847b43043b elicitation completed
NER batch_69c024e084cc81909a652f7c10d32c32 ner completed
NED1 batch_69c07df49eb881908189fc8afb2ed478 ned_source_triple completed
NED2 batch_69c087dbef588190949666371984c97f ned_description completed
NEDg batch_69c0877e28fc8190b12029b86bebe608 nedg completed
Created at: March 22, 2026, 3:46 p.m.