Triple
T16618465
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Upfield railway line |
E403755
|
entity |
| Predicate | usesRollingStock |
P5426
|
FINISHED |
| Object | Comeng EMU |
E606704
|
NE FINISHED |
How this triple was built (2 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: Comeng EMU | Statement: [Upfield railway line, usesRollingStock, Comeng EMU]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Comeng EMU Context triple: [Upfield railway line, usesRollingStock, Comeng EMU]
-
A.
Comeng EMU
chosen
The Comeng EMU is a long-serving class of electric multiple unit trains used on Melbourne's suburban rail network.
-
B.
Civia EMU
Civia EMU is a class of electric multiple unit commuter trains used by Spain’s Renfe for suburban and regional passenger services.
-
C.
Hitachi EMU
Hitachi EMU is a type of electric multiple unit train manufactured by Hitachi, used for urban mass rapid transit services.
-
D.
Class 455 EMU
The Class 455 EMU is a type of British electric multiple unit train introduced in the early 1980s for suburban commuter services in the South East of England.
-
E.
X60 EMU
The X60 EMU is a modern electric multiple unit train used for high-capacity commuter services in the Stockholm region.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (3 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_69d883897eb481909eaaa088ba9918d9 |
completed | April 10, 2026, 4:58 a.m. |
| NER | Named-entity recognition | batch_69e3754bc4cc8190a586732fc6507b40 |
completed | April 18, 2026, 12:12 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a007db0b4348190beb573bc3df98125 |
completed | May 10, 2026, 12:44 p.m. |
Created at: April 10, 2026, 5:17 a.m.