Triple

T18326193
Position Surface form Disambiguated ID Type / Status
Subject R188 subway car E439013 entity
Predicate family P566 FINISHED
Object NTT (New Technology Train) family
The NTT (New Technology Train) family is a series of modern New York City Subway rolling stock featuring advanced technology, improved performance, and enhanced passenger amenities compared to older car classes.
E1318868 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: NTT (New Technology Train) family | Statement: [R188 subway car, family, NTT (New Technology Train) family]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: NTT (New Technology Train) family
Context triple: [R188 subway car, family, NTT (New Technology Train) family]
  • A. Nagoya 5000 series trains
    The Nagoya 5000 series trains are Japanese-built electric multiple units originally used in Nagoya that were later exported and adapted for service on Buenos Aires’ Line D of the underground.
  • B. Shinkansen 700 series family
    The Shinkansen 700 series family is a group of high-speed Japanese bullet trains introduced in the late 1990s, known for their distinctive aerodynamic "duck-bill" nose design and operation on major Tokaido and Sanyo Shinkansen lines.
  • C. Keisei AE series EMU
    The Keisei AE series EMU is a high-speed electric multiple unit train operated by Keisei Electric Railway in Japan, primarily used for the premium airport express service between central Tokyo and Narita Airport.
  • D. Toei 6500 series EMU
    The Toei 6500 series EMU is a modern Japanese electric multiple unit train operated by the Tokyo Metropolitan Bureau of Transportation, designed for through-services on Tokyo subway and interconnecting commuter lines.
  • E. Series 200 Shinkansen
    The Series 200 Shinkansen was an early generation of Japanese high-speed train sets introduced in the 1980s for use on the Tōhoku and Jōetsu Shinkansen lines, known for their cold-weather performance and distinctive angular design.
  • 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: NTT (New Technology Train) family
Triple: [R188 subway car, family, NTT (New Technology Train) family]
Generated description
The NTT (New Technology Train) family is a series of modern New York City Subway rolling stock featuring advanced technology, improved performance, and enhanced passenger amenities compared to older car classes.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: NTT (New Technology Train) family
Target entity description: The NTT (New Technology Train) family is a series of modern New York City Subway rolling stock featuring advanced technology, improved performance, and enhanced passenger amenities compared to older car classes.
  • A. Nagoya 5000 series trains
    The Nagoya 5000 series trains are Japanese-built electric multiple units originally used in Nagoya that were later exported and adapted for service on Buenos Aires’ Line D of the underground.
  • B. Shinkansen 700 series family
    The Shinkansen 700 series family is a group of high-speed Japanese bullet trains introduced in the late 1990s, known for their distinctive aerodynamic "duck-bill" nose design and operation on major Tokaido and Sanyo Shinkansen lines.
  • C. Keisei AE series EMU
    The Keisei AE series EMU is a high-speed electric multiple unit train operated by Keisei Electric Railway in Japan, primarily used for the premium airport express service between central Tokyo and Narita Airport.
  • D. Toei 6500 series EMU
    The Toei 6500 series EMU is a modern Japanese electric multiple unit train operated by the Tokyo Metropolitan Bureau of Transportation, designed for through-services on Tokyo subway and interconnecting commuter lines.
  • E. Series 200 Shinkansen
    The Series 200 Shinkansen was an early generation of Japanese high-speed train sets introduced in the 1980s for use on the Tōhoku and Jōetsu Shinkansen lines, known for their cold-weather performance and distinctive angular design.
  • 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_69d8b916a2d081909e249e4902f6aad9 completed April 10, 2026, 8:47 a.m.
NER Named-entity recognition batch_69e50aab3e7c81909b1c0a688707dfd6 completed April 19, 2026, 5:02 p.m.
NED1 Entity disambiguation (via context triple) batch_6a03c4cc227481909497c0d13a8eb816 completed May 13, 2026, 12:24 a.m.
NEDg Description generation batch_6a03c8e79b8c8190a8e20ad0ef90fc19 completed May 13, 2026, 12:42 a.m.
NED2 Entity disambiguation (via description) batch_6a03c94a98ac819085d3f99bdf6f4970 completed May 13, 2026, 12:43 a.m.
Created at: April 10, 2026, 10:36 a.m.