Triple

T9916888
Position Surface form Disambiguated ID Type / Status
Subject Tobu Railway E185891 entity
Predicate operatesService P5884 FINISHED
Object Tobu Skytree limited express
Tobu Skytree limited express is a premium limited express train service in Japan that provides fast, comfortable access to the Tokyo Skytree area and other destinations along the Tobu Railway network.
 E173391 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: Tobu Skytree limited express | Statement: [Tobu Railway, operatesService, Tobu Skytree limited express]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Tobu Skytree limited express
Context triple: [Tobu Railway, operatesService, Tobu Skytree limited express]
  • A. Keisei Skyliner
    Keisei Skyliner is a high-speed limited express train service in Japan that links central Tokyo with Narita International Airport.
  • B. Tobu Skytree Line
    The Tobu Skytree Line is a major private railway line in the Tokyo area operated by Tobu Railway, serving central Tokyo and extending northward toward Saitama and Tochigi, including access to the Tokyo Skytree.
  • C. Narita Express
    Narita Express is a limited express train service in Japan that provides fast, direct rail connections between central Tokyo and Narita International Airport.
  • D. Rokkō Liner
    Rokkō Liner is an automated guideway transit line in Kobe, Japan, connecting the artificial island of Rokkō Island with the mainland.
  • E. Haruka limited express
    Haruka limited express is a Japanese limited express train service connecting Kansai International Airport with major destinations such as Kyoto and Osaka, primarily serving airport travelers.
  • 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: Tobu Skytree limited express
Triple: [Tobu Railway, operatesService, Tobu Skytree limited express]
Generated description
Tobu Skytree limited express is a premium limited express train service in Japan that provides fast, comfortable access to the Tokyo Skytree area and other destinations along the Tobu Railway network.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Tobu Skytree limited express
Target entity description: Tobu Skytree limited express is a premium limited express train service in Japan that provides fast, comfortable access to the Tokyo Skytree area and other destinations along the Tobu Railway network.
  • A. Keisei Skyliner
    Keisei Skyliner is a high-speed limited express train service in Japan that links central Tokyo with Narita International Airport.
  • B. Tobu Skytree Line chosen
    The Tobu Skytree Line is a major private railway line in the Tokyo area operated by Tobu Railway, serving central Tokyo and extending northward toward Saitama and Tochigi, including access to the Tokyo Skytree.
  • C. Narita Express
    Narita Express is a limited express train service in Japan that provides fast, direct rail connections between central Tokyo and Narita International Airport.
  • D. Rokkō Liner
    Rokkō Liner is an automated guideway transit line in Kobe, Japan, connecting the artificial island of Rokkō Island with the mainland.
  • E. Haruka limited express
    Haruka limited express is a Japanese limited express train service connecting Kansai International Airport with major destinations such as Kyoto and Osaka, primarily serving airport travelers.
  • F. None of above.

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_69ca829b45f481909040f7b99a1976ed completed March 30, 2026, 2:03 p.m.
NER Named-entity recognition batch_69cdb540195881908f25f7dde5c66a75 completed April 2, 2026, 12:16 a.m.
NED1 Entity disambiguation (via context triple) batch_69d2cb6276ec8190ad8623129f804c91 completed April 5, 2026, 8:51 p.m.
NEDg Description generation batch_69d2cd242ed8819097895cb15cbb5d47 completed April 5, 2026, 8:59 p.m.
NED2 Entity disambiguation (via description) batch_69d2d1204f008190a9349c071c1e8d19 completed April 5, 2026, 9:16 p.m.
Created at: March 30, 2026, 8:42 p.m.