Triple

T1478145
Position Surface form Disambiguated ID Type / Status
Subject Hatagaya E30889 entity
Predicate railwayLine P848 FINISHED
Object Keiō New Line
The Keiō New Line is a commuter railway line in Tokyo, Japan, operated by Keio Corporation and serving as an underground extension of the main Keio Line into central Tokyo.
E168931 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: Keiō New Line | Statement: [Hatagaya, railwayLine, Keiō New Line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Keiō New Line
Context triple: [Hatagaya, railwayLine, Keiō New Line]
  • A. JR Saikyo Line
    The JR Saikyo Line is a major commuter rail line in the Tokyo metropolitan area operated by JR East, connecting central Tokyo with Saitama Prefecture and serving key hubs such as Shibuya and Shinjuku.
  • B. Minatomirai Line
    The Minatomirai Line is a private railway line in Yokohama, Japan, connecting central Yokohama with the Minato Mirai 21 waterfront district and offering through services with multiple Tokyo subway and suburban lines.
  • C. Umeda Freight Line
    The Umeda Freight Line is a dedicated railway freight route in Osaka, Japan, used primarily for transporting goods through the city's rail network.
  • D. Toei Subway
    Toei Subway is one of Tokyo's two main subway networks, operated by the Tokyo Metropolitan Bureau of Transportation and serving numerous urban and suburban areas across the city.
  • E. Yotsubashi Line
    The Yotsubashi Line is a rapid transit line in Osaka, Japan, forming part of the Osaka Metro network and serving key north–south corridors through the city.
  • 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: Keiō New Line
Triple: [Hatagaya, railwayLine, Keiō New Line]
Generated description
The Keiō New Line is a commuter railway line in Tokyo, Japan, operated by Keio Corporation and serving as an underground extension of the main Keio Line into central Tokyo.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Keiō New Line
Target entity description: The Keiō New Line is a commuter railway line in Tokyo, Japan, operated by Keio Corporation and serving as an underground extension of the main Keio Line into central Tokyo.
  • A. JR Saikyo Line
    The JR Saikyo Line is a major commuter rail line in the Tokyo metropolitan area operated by JR East, connecting central Tokyo with Saitama Prefecture and serving key hubs such as Shibuya and Shinjuku.
  • B. Minatomirai Line
    The Minatomirai Line is a private railway line in Yokohama, Japan, connecting central Yokohama with the Minato Mirai 21 waterfront district and offering through services with multiple Tokyo subway and suburban lines.
  • C. Umeda Freight Line
    The Umeda Freight Line is a dedicated railway freight route in Osaka, Japan, used primarily for transporting goods through the city's rail network.
  • D. Toei Subway
    Toei Subway is one of Tokyo's two main subway networks, operated by the Tokyo Metropolitan Bureau of Transportation and serving numerous urban and suburban areas across the city.
  • E. Yotsubashi Line
    The Yotsubashi Line is a rapid transit line in Osaka, Japan, forming part of the Osaka Metro network and serving key north–south corridors through the city.
  • 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_69a498fe55a88190ab7f9e40ace88e49 completed March 1, 2026, 7:52 p.m.
NER Named-entity recognition batch_69a4c605d4c0819088ab06678b2ba6f3 completed March 1, 2026, 11:04 p.m.
NED1 Entity disambiguation (via context triple) batch_69ad15aff1288190a3e36324d975d482 completed March 8, 2026, 6:22 a.m.
NEDg Description generation batch_69ad1639e21081908737b51e910ceae3 completed March 8, 2026, 6:24 a.m.
NED2 Entity disambiguation (via description) batch_69ad16a98fd08190a14f4d7d6b11f5e8 completed March 8, 2026, 6:26 a.m.
Created at: March 1, 2026, 8:11 p.m.