Triple

T5676917
Position Surface form Disambiguated ID Type / Status
Subject E231 series EMU E125107 entity
Predicate usedOnLine P15252 FINISHED
Object Jōban Line
The Jōban Line is a major railway corridor in Japan operated by JR East, connecting central Tokyo with the northeastern Kanto and Tōhoku regions along the Pacific coast.
E690755 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: Jōban Line | Statement: [E231 series EMU, usedOnLine, Jōban Line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Jōban Line
Context triple: [E231 series EMU, usedOnLine, Jōban Line]
  • A. Kosei Line
    The Kosei Line is a railway line in Japan operated by JR West that runs along the western shore of Lake Biwa, connecting Kyoto with the Shiga and Fukui prefecture areas.
  • B. Hanzōmon Line
    The Hanzōmon Line is a Tokyo Metro subway line in Tokyo, Japan, connecting central districts with eastern and southwestern suburbs as part of the city’s urban rail network.
  • C. Wakayamakō Line
    The Wakayamakō Line is a railway line in Wakayama Prefecture, Japan, providing passenger service between central Wakayama and the Wakayama Port area.
  • D. Yumesaki Line
    The Yumesaki Line is a railway line in Osaka, Japan, primarily serving access to the Osaka Bay area including major attractions such as Universal Studios Japan.
  • E. Yamatoji Line
    The Yamatoji Line is a railway line in Japan operated by JR West that connects Osaka with Nara, serving as a key commuter and intercity route in the Kansai region.
  • 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: Jōban Line
Triple: [E231 series EMU, usedOnLine, Jōban Line]
Generated description
The Jōban Line is a major railway corridor in Japan operated by JR East, connecting central Tokyo with the northeastern Kanto and Tōhoku regions along the Pacific coast.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Jōban Line
Target entity description: The Jōban Line is a major railway corridor in Japan operated by JR East, connecting central Tokyo with the northeastern Kanto and Tōhoku regions along the Pacific coast.
  • A. Kosei Line
    The Kosei Line is a railway line in Japan operated by JR West that runs along the western shore of Lake Biwa, connecting Kyoto with the Shiga and Fukui prefecture areas.
  • B. Hanzōmon Line
    The Hanzōmon Line is a Tokyo Metro subway line in Tokyo, Japan, connecting central districts with eastern and southwestern suburbs as part of the city’s urban rail network.
  • C. Wakayamakō Line
    The Wakayamakō Line is a railway line in Wakayama Prefecture, Japan, providing passenger service between central Wakayama and the Wakayama Port area.
  • D. Yumesaki Line
    The Yumesaki Line is a railway line in Osaka, Japan, primarily serving access to the Osaka Bay area including major attractions such as Universal Studios Japan.
  • E. Yamatoji Line
    The Yamatoji Line is a railway line in Japan operated by JR West that connects Osaka with Nara, serving as a key commuter and intercity route in the Kansai region.
  • 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_69c008295c808190acfe78915e7d656a completed March 22, 2026, 3:18 p.m.
NER Named-entity recognition batch_69c02392f9f481908f7b80873589eff1 completed March 22, 2026, 5:14 p.m.
NED1 Entity disambiguation (via context triple) batch_69c9493bf8088190bc59dd0e36d16a20 completed March 29, 2026, 3:46 p.m.
NEDg Description generation batch_69c949ce7900819080312f9f5776e7f7 completed March 29, 2026, 3:48 p.m.
NED2 Entity disambiguation (via description) batch_69c94a1e78f08190955632d35b02fb91 completed March 29, 2026, 3:49 p.m.
Created at: March 22, 2026, 3:43 p.m.