Triple

T4927966
Position Surface form Disambiguated ID Type / Status
Subject San Francisco Muni historic streetcars E110622 entity
Predicate hasPart P35 FINISHED
Object Melbourne W-class tram
The Melbourne W-class tram is an iconic early-20th-century electric tram from Melbourne, Australia, renowned for its distinctive green-and-cream livery and wooden interior, many of which now operate as historic streetcars in cities such as San Francisco.
E480903 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: Melbourne W-class tram | Statement: [San Francisco Muni historic streetcars, hasPart, Melbourne W-class tram]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Melbourne W-class tram
Context triple: [San Francisco Muni historic streetcars, hasPart, Melbourne W-class tram]
  • A. Carris trams
    Carris trams are the historic yellow streetcars that form part of Lisbon’s public transport network, operating on several scenic and hilly routes throughout the city.
  • B. Melbourne tram network
    The Melbourne tram network is an extensive electric tram system that serves as a key component of public transport across Melbourne, Australia, and is one of the largest tram networks in the world.
  • C. TPG tram network
    The TPG tram network is the urban tram system serving Geneva, Switzerland, operated by Transports Publics Genevois as part of the city’s public transport network.
  • D. Alstom Citadis tram
    The Alstom Citadis tram is a family of modern low-floor light rail vehicles widely used in urban tram networks around the world.
  • E. SL95 tram
    The SL95 tram is a high-floor, bi-directional tram model used in Oslo, Norway, known for its large capacity and operation on the city’s light rail and tram network.
  • 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: Melbourne W-class tram
Triple: [San Francisco Muni historic streetcars, hasPart, Melbourne W-class tram]
Generated description
The Melbourne W-class tram is an iconic early-20th-century electric tram from Melbourne, Australia, renowned for its distinctive green-and-cream livery and wooden interior, many of which now operate as historic streetcars in cities such as San Francisco.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Melbourne W-class tram
Target entity description: The Melbourne W-class tram is an iconic early-20th-century electric tram from Melbourne, Australia, renowned for its distinctive green-and-cream livery and wooden interior, many of which now operate as historic streetcars in cities such as San Francisco.
  • A. Carris trams
    Carris trams are the historic yellow streetcars that form part of Lisbon’s public transport network, operating on several scenic and hilly routes throughout the city.
  • B. Melbourne tram network
    The Melbourne tram network is an extensive electric tram system that serves as a key component of public transport across Melbourne, Australia, and is one of the largest tram networks in the world.
  • C. TPG tram network
    The TPG tram network is the urban tram system serving Geneva, Switzerland, operated by Transports Publics Genevois as part of the city’s public transport network.
  • D. Alstom Citadis tram
    The Alstom Citadis tram is a family of modern low-floor light rail vehicles widely used in urban tram networks around the world.
  • E. SL95 tram
    The SL95 tram is a high-floor, bi-directional tram model used in Oslo, Norway, known for its large capacity and operation on the city’s light rail and tram network.
  • 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_69bd4415190c8190817bee7ec9f9f944 completed March 20, 2026, 12:56 p.m.
NER Named-entity recognition batch_69bd7036d8e88190bc4be2975160da23 completed March 20, 2026, 4:05 p.m.
NED1 Entity disambiguation (via context triple) batch_69be77ac88148190a51fa2e9085d6897 completed March 21, 2026, 10:49 a.m.
NEDg Description generation batch_69be7847a378819081687ec783a8b862 completed March 21, 2026, 10:51 a.m.
NED2 Entity disambiguation (via description) batch_69be7915a26c81909b21a128daebf5b3 completed March 21, 2026, 10:55 a.m.
Created at: March 20, 2026, 1:30 p.m.