Triple

T7567183
Position Surface form Disambiguated ID Type / Status
Subject Keio railway network E178944 entity
Predicate hasStationNear P77644 FINISHED
Object Tokyo Racecourse
Tokyo Racecourse is a major Japanese horse racing venue in Fuchu, Tokyo, known for hosting prestigious events such as the Japan Cup.
E673927 NE FINISHED

How this triple was built (5 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: Tokyo Racecourse | Statement: [Keio railway network, hasStationNear, Tokyo Racecourse]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Tokyo Racecourse
Context triple: [Keio railway network, hasStationNear, Tokyo Racecourse]
  • A. Obihiro Racecourse
    Obihiro Racecourse is a Japanese horse racing venue in Obihiro, Hokkaido, best known as the only track that regularly hosts traditional Ban'ei draft horse races.
  • B. Hanshin Racecourse (near Amagasaki)
    Hanshin Racecourse (near Amagasaki) is a major Japanese horse racing venue in the Kansai region, known for hosting prominent flat racing events including the Hanshin Juvenile Fillies and the Takarazuka Kinen.
  • C. Suzuka
    Suzuka is a city in Japan best known internationally for the Suzuka International Racing Course, which hosts major motorsport events including Formula One races.
  • D. Komazawa Olympic Park
    Komazawa Olympic Park is a large sports and recreation complex in Tokyo that was originally developed as a venue for the 1964 Summer Olympics.
  • E. Arima Velodrome
    Arima Velodrome is a cycling and multi-purpose sporting facility located in the town of Arima in Trinidad and Tobago.
  • 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: Tokyo Racecourse
Triple: [Keio railway network, hasStationNear, Tokyo Racecourse]
Generated description
Tokyo Racecourse is a major Japanese horse racing venue in Fuchu, Tokyo, known for hosting prestigious events such as the Japan Cup.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Tokyo Racecourse
Target entity description: Tokyo Racecourse is a major Japanese horse racing venue in Fuchu, Tokyo, known for hosting prestigious events such as the Japan Cup.
  • A. Obihiro Racecourse
    Obihiro Racecourse is a Japanese horse racing venue in Obihiro, Hokkaido, best known as the only track that regularly hosts traditional Ban'ei draft horse races.
  • B. Hanshin Racecourse (near Amagasaki)
    Hanshin Racecourse (near Amagasaki) is a major Japanese horse racing venue in the Kansai region, known for hosting prominent flat racing events including the Hanshin Juvenile Fillies and the Takarazuka Kinen.
  • C. Suzuka
    Suzuka is a city in Japan best known internationally for the Suzuka International Racing Course, which hosts major motorsport events including Formula One races.
  • D. Komazawa Olympic Park
    Komazawa Olympic Park is a large sports and recreation complex in Tokyo that was originally developed as a venue for the 1964 Summer Olympics.
  • E. Arima Velodrome
    Arima Velodrome is a cycling and multi-purpose sporting facility located in the town of Arima in Trinidad and Tobago.
  • F. None of above. chosen
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: hasStationNear
Context triple: [Keio railway network, hasStationNear, Tokyo Racecourse]
  • A. hasAdjacentStationOnAC
    Indicates that one station is directly next to another station along the AC line or route.
  • B. hasNotableStation
    Indicates that an entity possesses or is associated with a station that is considered notable or significant in some context.
  • C. hasNearbyBirdStation
    Indicates that one entity is located close to a bird observation or monitoring station associated with another entity.
  • D. hasFocalStations
    Indicates that an entity is associated with one or more primary or central stations that serve as its main points of focus or operation.
  • E. hasMeteorologicalStation
    Indicates that one entity possesses, hosts, or is equipped with a meteorological station used for observing and recording weather-related data.
  • F. None of above. chosen

Provenance (7 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_69c69f2f80288190b95cceb4da92ab2b completed March 27, 2026, 3:15 p.m.
NER Named-entity recognition batch_69c6f91c717881909c88901cc3b101c7 completed March 27, 2026, 9:39 p.m.
NED1 Entity disambiguation (via context triple) batch_69c856e0c23481908fc59ecc318840ba completed March 28, 2026, 10:32 p.m.
NEDg Description generation batch_69c858e260d0819084df667d5aec53f7 completed March 28, 2026, 10:40 p.m.
NED2 Entity disambiguation (via description) batch_69c859790e8881908a78449f40d528d8 completed March 28, 2026, 10:43 p.m.
PD Predicate disambiguation batch_69c6f4dc485c819080da13e3b7f4f08f completed March 27, 2026, 9:21 p.m.
PDg Predicate description generation batch_69c6f59517648190ac0a9e9cba045dd5 completed March 27, 2026, 9:24 p.m.
Created at: March 27, 2026, 3:50 p.m.