Triple

T16079428
Position Surface form Disambiguated ID Type / Status
Subject Kanda River E390064 entity
Predicate crossedBy P416 FINISHED
Object Chūō Main Line railway bridges
The Chūō Main Line railway bridges are a series of rail bridges in Tokyo that carry JR East’s Chūō Main Line across the Kanda River and surrounding urban areas.
E1193030 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: Chūō Main Line railway bridges | Statement: [Kanda River, crossedBy, Chūō Main Line railway bridges]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Chūō Main Line railway bridges
Context triple: [Kanda River, crossedBy, Chūō Main Line railway bridges]
  • A. Tamagawa Railway Bridge
    Tamagawa Railway Bridge is a railway bridge in Japan that carries train lines across the Tama River, connecting areas of Tokyo and its surroundings.
  • B. Yamato River Bridge (multiple road and rail bridges)
    Yamato River Bridge refers collectively to several adjacent road and railway bridges that span the Yamato River in Japan, carrying both vehicular and train traffic across the waterway.
  • C. Tamagawa Bridge
    Tamagawa Bridge is a notable bridge spanning the Tama River in Japan, serving as an important transportation link between parts of Tokyo and its neighboring areas.
  • D. Seto Ohashi Bridge system
    The Seto Ohashi Bridge system is a series of double-deck road-and-rail suspension and cable-stayed bridges in Japan that spans the Seto Inland Sea, linking the islands of Honshu and Shikoku.
  • E. Demachiyanagi bridges
    Demachiyanagi bridges are a set of river crossings in Kyoto, Japan, that span the Kamo River near the Demachiyanagi area, connecting important urban and residential districts.
  • 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: Chūō Main Line railway bridges
Triple: [Kanda River, crossedBy, Chūō Main Line railway bridges]
Generated description
The Chūō Main Line railway bridges are a series of rail bridges in Tokyo that carry JR East’s Chūō Main Line across the Kanda River and surrounding urban areas.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Chūō Main Line railway bridges
Target entity description: The Chūō Main Line railway bridges are a series of rail bridges in Tokyo that carry JR East’s Chūō Main Line across the Kanda River and surrounding urban areas.
  • A. Tamagawa Railway Bridge
    Tamagawa Railway Bridge is a railway bridge in Japan that carries train lines across the Tama River, connecting areas of Tokyo and its surroundings.
  • B. Yamato River Bridge (multiple road and rail bridges)
    Yamato River Bridge refers collectively to several adjacent road and railway bridges that span the Yamato River in Japan, carrying both vehicular and train traffic across the waterway.
  • C. Tamagawa Bridge
    Tamagawa Bridge is a notable bridge spanning the Tama River in Japan, serving as an important transportation link between parts of Tokyo and its neighboring areas.
  • D. Seto Ohashi Bridge system
    The Seto Ohashi Bridge system is a series of double-deck road-and-rail suspension and cable-stayed bridges in Japan that spans the Seto Inland Sea, linking the islands of Honshu and Shikoku.
  • E. Demachiyanagi bridges
    Demachiyanagi bridges are a set of river crossings in Kyoto, Japan, that span the Kamo River near the Demachiyanagi area, connecting important urban and residential districts.
  • 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_69d86daf32ec8190a8c0466c8f49c3c0 completed April 10, 2026, 3:25 a.m.
NER Named-entity recognition batch_69e18448bebc8190b0e84b1da097bf8b completed April 17, 2026, 12:52 a.m.
NED1 Entity disambiguation (via context triple) batch_69ffe48adec081909623355eabee472c completed May 10, 2026, 1:51 a.m.
NEDg Description generation batch_69ffe6af1c4081908b57f4dc485fbb14 completed May 10, 2026, 2 a.m.
NED2 Entity disambiguation (via description) batch_69ffe769d56081908f723e92d327e315 completed May 10, 2026, 2:03 a.m.
Created at: April 10, 2026, 4:57 a.m.