Triple

T17823996
Position Surface form Disambiguated ID Type / Status
Subject Sendagaya Station E445064 entity
Predicate railwayLine P848 FINISHED
Object Sōbu Line (local)
The Sōbu Line (local) is a commuter rail service in the Tokyo area operated by JR East, providing frequent all-stop connections between central Tokyo and its eastern suburbs.
E1289336 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: Sōbu Line (local) | Statement: [Sendagaya Station, railwayLine, Sōbu Line (local)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Sōbu Line (local)
Context triple: [Sendagaya Station, railwayLine, Sōbu Line (local)]
  • A. Seishin-Yamate Line
    The Seishin-Yamate Line is a major Kobe Municipal Subway line in Kobe, Japan, connecting central Kobe with its northern and western suburban areas.
  • B. Karasuyama Line
    The Karasuyama Line is a regional railway line in Tochigi Prefecture, Japan, operated by JR East and connecting Utsunomiya with the town of Nasukarasuyama.
  • C. Yurikamome Line
    The Yurikamome Line is an automated, elevated transit line in Tokyo that connects central Tokyo with the Odaiba waterfront area, offering scenic views including a crossing of the Rainbow Bridge.
  • D. Oimachi Line
    The Oimachi Line is a commuter railway line in Tokyo, Japan, forming part of the Tokyu network and connecting central Tokyo with its southwestern suburbs.
  • E. Marunouchi Line
    The Marunouchi Line is one of Tokyo’s main subway lines, forming a central loop and radial route that connects key business, shopping, and transit hubs across 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: Sōbu Line (local)
Triple: [Sendagaya Station, railwayLine, Sōbu Line (local)]
Generated description
The Sōbu Line (local) is a commuter rail service in the Tokyo area operated by JR East, providing frequent all-stop connections between central Tokyo and its eastern suburbs.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Sōbu Line (local)
Target entity description: The Sōbu Line (local) is a commuter rail service in the Tokyo area operated by JR East, providing frequent all-stop connections between central Tokyo and its eastern suburbs.
  • A. Seishin-Yamate Line
    The Seishin-Yamate Line is a major Kobe Municipal Subway line in Kobe, Japan, connecting central Kobe with its northern and western suburban areas.
  • B. Karasuyama Line
    The Karasuyama Line is a regional railway line in Tochigi Prefecture, Japan, operated by JR East and connecting Utsunomiya with the town of Nasukarasuyama.
  • C. Yurikamome Line
    The Yurikamome Line is an automated, elevated transit line in Tokyo that connects central Tokyo with the Odaiba waterfront area, offering scenic views including a crossing of the Rainbow Bridge.
  • D. Oimachi Line
    The Oimachi Line is a commuter railway line in Tokyo, Japan, forming part of the Tokyu network and connecting central Tokyo with its southwestern suburbs.
  • E. Marunouchi Line
    The Marunouchi Line is one of Tokyo’s main subway lines, forming a central loop and radial route that connects key business, shopping, and transit hubs across 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_69d8b9f0de78819099395b14db75a8a6 completed April 10, 2026, 8:50 a.m.
NER Named-entity recognition batch_69e4891352ac8190ad3d669fea1c9fbb completed April 19, 2026, 7:49 a.m.
NED1 Entity disambiguation (via context triple) batch_6a02ff69f02c81908a7b6b8b564cceec completed May 12, 2026, 10:22 a.m.
NEDg Description generation batch_6a03000abe908190a4f4835f348aa544 completed May 12, 2026, 10:25 a.m.
NED2 Entity disambiguation (via description) batch_6a0300e885e481909c76dfbac2fd1009 completed May 12, 2026, 10:28 a.m.
Created at: April 10, 2026, 10:15 a.m.