Triple

T11012982
Position Surface form Disambiguated ID Type / Status
Subject Chuo-ku, Osaka E260288 entity
Predicate servedBy P82 FINISHED
Object Keihan Main Line (near Kitahama)
The Keihan Main Line near Kitahama is a major commuter railway corridor in central Osaka that connects the city with Kyoto and serves key business and commercial districts.
E900045 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: Keihan Main Line (near Kitahama) | Statement: [Chuo-ku, Osaka, servedBy, Keihan Main Line (near Kitahama)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Keihan Main Line (near Kitahama)
Context triple: [Chuo-ku, Osaka, servedBy, Keihan Main Line (near Kitahama)]
  • A. Sanyō Main Line (urban section)
    The Sanyō Main Line (urban section) is a heavily used commuter and intercity railway corridor in the Osaka–Kobe–Himeji metropolitan area of western Japan operated as part of JR West’s Urban Network.
  • B. Keihan Uji Line
    The Keihan Uji Line is a Japanese railway line operated by Keihan Electric Railway that connects Kyoto’s suburban areas with the historic city of Uji, known for its temples and tea culture.
  • C. Hankyu Itami Line
    The Hankyu Itami Line is a short commuter railway line in Hyōgo Prefecture, Japan, connecting the city of Itami with the broader Hankyu Railway network in the Osaka metropolitan area.
  • D. Tōkaidō Main Line (urban section)
    The Tōkaidō Main Line (urban section) is a heavily used commuter rail corridor in the Osaka–Kobe–Kyoto metropolitan area, forming a key part of JR West’s high-frequency urban rail services.
  • E. Kintetsu Namba Line
    The Kintetsu Namba Line is a major commuter railway line in Osaka, Japan, operated by Kintetsu Railway and connecting central Osaka with the wider Kintetsu network.
  • 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: Keihan Main Line (near Kitahama)
Triple: [Chuo-ku, Osaka, servedBy, Keihan Main Line (near Kitahama)]
Generated description
The Keihan Main Line near Kitahama is a major commuter railway corridor in central Osaka that connects the city with Kyoto and serves key business and commercial districts.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Keihan Main Line (near Kitahama)
Target entity description: The Keihan Main Line near Kitahama is a major commuter railway corridor in central Osaka that connects the city with Kyoto and serves key business and commercial districts.
  • A. Sanyō Main Line (urban section)
    The Sanyō Main Line (urban section) is a heavily used commuter and intercity railway corridor in the Osaka–Kobe–Himeji metropolitan area of western Japan operated as part of JR West’s Urban Network.
  • B. Keihan Uji Line
    The Keihan Uji Line is a Japanese railway line operated by Keihan Electric Railway that connects Kyoto’s suburban areas with the historic city of Uji, known for its temples and tea culture.
  • C. Hankyu Itami Line
    The Hankyu Itami Line is a short commuter railway line in Hyōgo Prefecture, Japan, connecting the city of Itami with the broader Hankyu Railway network in the Osaka metropolitan area.
  • D. Tōkaidō Main Line (urban section)
    The Tōkaidō Main Line (urban section) is a heavily used commuter rail corridor in the Osaka–Kobe–Kyoto metropolitan area, forming a key part of JR West’s high-frequency urban rail services.
  • E. Kintetsu Namba Line
    The Kintetsu Namba Line is a major commuter railway line in Osaka, Japan, operated by Kintetsu Railway and connecting central Osaka with the wider Kintetsu network.
  • 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_69d6aa9687448190b28d353b1b6a610e completed April 8, 2026, 7:20 p.m.
NER Named-entity recognition batch_69d7978b1e888190b297f107f6021b59 completed April 9, 2026, 12:11 p.m.
NED1 Entity disambiguation (via context triple) batch_69e374c238ac81908e0a5eff958d6545 completed April 18, 2026, 12:10 p.m.
NEDg Description generation batch_69e37ab6ca788190ac41f9494ad9a47f completed April 18, 2026, 12:36 p.m.
NED2 Entity disambiguation (via description) batch_69e37c9439fc8190a69cfb1a13da4c19 completed April 18, 2026, 12:44 p.m.
Created at: April 8, 2026, 9:25 p.m.