Triple
T7377588
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Hurstbridge line |
E170165
|
entity |
| Predicate | depot |
P14646
|
FINISHED |
| Object | Epping train maintenance facility |
E656866
|
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: Epping train maintenance facility | Statement: [Hurstbridge line, depot, Epping train maintenance facility]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Epping train maintenance facility Context triple: [Hurstbridge line, depot, Epping train maintenance facility]
-
A.
Epping train maintenance facility
chosen
The Epping train maintenance facility is a major rail depot in Melbourne that services and maintains suburban trains operating on the city's northern lines.
-
B.
Hainault depot
Hainault depot is a major London Underground maintenance and stabling facility serving trains on the Central line in northeast London.
-
C.
Epping railway station
Epping railway station is a suburban commuter rail station in Melbourne, Australia, serving the northern suburb of Epping on the city's metropolitan rail network.
-
D.
Ealing Common Depot
Ealing Common Depot is a London Underground maintenance and stabling facility serving primarily the District line in west London.
-
E.
Neasden Depot
Neasden Depot is a major London Underground maintenance and stabling facility serving trains on the Metropolitan line.
- 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_69c68a5bfaac81909ce7f001dfb70c76 |
completed | March 27, 2026, 1:47 p.m. |
| NER | Named-entity recognition | batch_69c6f1aa12888190b81e37b9fcd2adc0 |
completed | March 27, 2026, 9:07 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c802d57ae88190840442621d8bef35 |
completed | March 28, 2026, 4:33 p.m. |
Created at: March 27, 2026, 3:07 p.m.