Triple
T6863378
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Metro Trains Melbourne |
E158336
|
entity |
| Predicate | parentCompany |
P254
|
FINISHED |
| Object |
Metro Trains Australia
Metro Trains Australia is a rail transport company that oversees and operates metropolitan passenger train services in Australia, including the Melbourne suburban rail network.
|
E158336
|
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: Metro Trains Australia | Statement: [Metro Trains Melbourne, parentCompany, Metro Trains Australia]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Metro Trains Australia Context triple: [Metro Trains Melbourne, parentCompany, Metro Trains Australia]
-
A.
Metro Trains Melbourne
Metro Trains Melbourne is the suburban rail operator responsible for running Melbourne’s metropolitan train network under contract to the Victorian government.
-
B.
Sydney Trains
Sydney Trains is a government-owned suburban rail network operator serving the greater Sydney metropolitan area in New South Wales, Australia.
-
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.
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.
-
E.
Sydney Metro
Sydney Metro is a fully automated rapid transit system serving the Sydney metropolitan area, designed to provide high-frequency, high-capacity rail services independent of the existing suburban train 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: Metro Trains Australia Triple: [Metro Trains Melbourne, parentCompany, Metro Trains Australia]
Generated description
Metro Trains Australia is a rail transport company that oversees and operates metropolitan passenger train services in Australia, including the Melbourne suburban rail network.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Metro Trains Australia Target entity description: Metro Trains Australia is a rail transport company that oversees and operates metropolitan passenger train services in Australia, including the Melbourne suburban rail network.
-
A.
Metro Trains Melbourne
chosen
Metro Trains Melbourne is the suburban rail operator responsible for running Melbourne’s metropolitan train network under contract to the Victorian government.
-
B.
Sydney Trains
Sydney Trains is a government-owned suburban rail network operator serving the greater Sydney metropolitan area in New South Wales, Australia.
-
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.
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.
-
E.
Sydney Metro
Sydney Metro is a fully automated rapid transit system serving the Sydney metropolitan area, designed to provide high-frequency, high-capacity rail services independent of the existing suburban train network.
- 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_69c68830cdbc8190a8301c7a9d9f651a |
completed | March 27, 2026, 1:37 p.m. |
| NER | Named-entity recognition | batch_69c6d8897cf48190a2f688d21f1f6c1a |
completed | March 27, 2026, 7:20 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c7511828608190b3a206629b27d410 |
completed | March 28, 2026, 3:55 a.m. |
| NEDg | Description generation | batch_69c751abed548190ac2152acd3029d2d |
completed | March 28, 2026, 3:57 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69c7558dd72081909af14d319ce01ff6 |
completed | March 28, 2026, 4:14 a.m. |
Created at: March 27, 2026, 2:21 p.m.