Triple
T19232451
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Melbourne W-class tram |
E480903
|
entity |
| Predicate | manufacturer |
P490
|
FINISHED |
| Object | Melbourne & Metropolitan Tramways Board workshops |
—
|
NE NERFINISHED |
How this triple was built (3 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 & Metropolitan Tramways Board workshops | Statement: [Melbourne W-class tram, manufacturer, Melbourne & Metropolitan Tramways Board workshops]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Melbourne & Metropolitan Tramways Board workshops Context triple: [Melbourne W-class tram, manufacturer, Melbourne & Metropolitan Tramways Board workshops]
-
A.
Bendigo Tramways
Bendigo Tramways is a historic tram network and tourist attraction in Bendigo, Victoria, known for operating heritage trams and preserving the city’s tramway history.
-
B.
Essendon tram depot
Essendon tram depot is a major tram maintenance and operations facility serving Melbourne’s tram network in the suburb of Essendon.
-
C.
Camberwell tram depot
Camberwell tram depot is a major tram maintenance and operations facility serving Melbourne’s tram network in the suburb of Camberwell.
-
D.
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.
-
E.
Yarra Trams
Yarra Trams is the operator of Melbourne’s extensive electric tram network, the largest urban tram system in the world.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Melbourne & Metropolitan Tramways Board workshops Target entity description: The Melbourne & Metropolitan Tramways Board workshops were the primary tram construction and maintenance facilities in Melbourne, Australia, renowned for building and servicing the city’s iconic tram fleet.
-
A.
Bendigo Tramways
Bendigo Tramways is a historic tram network and tourist attraction in Bendigo, Victoria, known for operating heritage trams and preserving the city’s tramway history.
-
B.
Essendon tram depot
Essendon tram depot is a major tram maintenance and operations facility serving Melbourne’s tram network in the suburb of Essendon.
-
C.
Camberwell tram depot
Camberwell tram depot is a major tram maintenance and operations facility serving Melbourne’s tram network in the suburb of Camberwell.
-
D.
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.
-
E.
Yarra Trams
Yarra Trams is the operator of Melbourne’s extensive electric tram network, the largest urban tram system in the world.
- F. None of above. chosen
Provenance (2 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_69d8e8ccb8f48190ad420098e74fb1db |
completed | April 10, 2026, 12:10 p.m. |
| NER | Named-entity recognition | batch_69e5fa9db56081908f50d318d7fc9eaa |
completed | April 20, 2026, 10:06 a.m. |
Created at: April 10, 2026, 1:25 p.m.