Triple

T10657586
Position Surface form Disambiguated ID Type / Status
Subject JR Chuo-Sobu Line E251132 entity
Predicate servesArea P82 FINISHED
Object western Chiba Prefecture
Western Chiba Prefecture is a suburban region east of Tokyo characterized by dense residential areas, commercial centers, and strong commuter links into the capital.
E877838 NE FINISHED

How this triple was built (4 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: western Chiba Prefecture | Statement: [JR Chuo-Sobu Line, servesArea, western Chiba Prefecture]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: western Chiba Prefecture
Context triple: [JR Chuo-Sobu Line, servesArea, western Chiba Prefecture]
  • A. northern Osaka Prefecture
    Northern Osaka Prefecture is a suburban area of Osaka, Japan, known for its residential communities, commercial centers, and rail-connected commuter towns.
  • B. southern Osaka Prefecture
    Southern Osaka Prefecture is a subregion in the southern part of Osaka Prefecture, Japan, known for its mix of suburban cities, historical sites, and agricultural areas.
  • C. Ibaraki, Osaka Prefecture, Japan
    Ibaraki is a city in Osaka Prefecture, Japan, known as a suburban hub between Osaka and Kyoto that blends residential areas, educational institutions, and notable contemporary architecture.
  • D. Ichikawa, Chiba Prefecture
    Ichikawa, in Chiba Prefecture, is a residential and commercial city in the Greater Tokyo Area known for its convenient access to central Tokyo and mix of urban and suburban neighborhoods.
  • E. Saitama Prefecture, Japan
    Saitama Prefecture, Japan is a populous prefecture in the Kantō region just north of Tokyo, known for its role as a major residential and commercial hub as well as for hosting key national institutions.
  • 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: western Chiba Prefecture
Triple: [JR Chuo-Sobu Line, servesArea, western Chiba Prefecture]
Generated description
Western Chiba Prefecture is a suburban region east of Tokyo characterized by dense residential areas, commercial centers, and strong commuter links into the capital.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: western Chiba Prefecture
Target entity description: Western Chiba Prefecture is a suburban region east of Tokyo characterized by dense residential areas, commercial centers, and strong commuter links into the capital.
  • A. northern Osaka Prefecture
    Northern Osaka Prefecture is a suburban area of Osaka, Japan, known for its residential communities, commercial centers, and rail-connected commuter towns.
  • B. southern Osaka Prefecture
    Southern Osaka Prefecture is a subregion in the southern part of Osaka Prefecture, Japan, known for its mix of suburban cities, historical sites, and agricultural areas.
  • C. Ibaraki, Osaka Prefecture, Japan
    Ibaraki is a city in Osaka Prefecture, Japan, known as a suburban hub between Osaka and Kyoto that blends residential areas, educational institutions, and notable contemporary architecture.
  • D. Ichikawa, Chiba Prefecture
    Ichikawa, in Chiba Prefecture, is a residential and commercial city in the Greater Tokyo Area known for its convenient access to central Tokyo and mix of urban and suburban neighborhoods.
  • E. Saitama Prefecture, Japan
    Saitama Prefecture, Japan is a populous prefecture in the Kantō region just north of Tokyo, known for its role as a major residential and commercial hub as well as for hosting key national institutions.
  • F. None of above. chosen

Provenance (5 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_69d6aa5a4c4881908f39be6efe5981e5 completed April 8, 2026, 7:19 p.m.
NER Named-entity recognition batch_69d6e0157dbc81909ef7d61f65b2fd93 completed April 8, 2026, 11:09 p.m.
NED1 Entity disambiguation (via context triple) batch_69d97a7aa490819094c7eaf3fc5e2c43 completed April 10, 2026, 10:32 p.m.
NEDg Description generation batch_69d97ef6d9a881909d688cb8c948f491 completed April 10, 2026, 10:51 p.m.
NED2 Entity disambiguation (via description) batch_69d97f700f188190808fcf2f14403980 completed April 10, 2026, 10:53 p.m.
Created at: April 8, 2026, 9:07 p.m.