Triple
T16900497
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Ifield railway station |
E424420
|
entity |
| Predicate | hasOperatorHistory |
P28596
|
FINISHED |
| Object | Southern Railway (historical pre-nationalisation) |
E102970
|
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: Southern Railway (historical pre-nationalisation) | Statement: [Ifield railway station, hasOperatorHistory, Southern Railway (historical pre-nationalisation)]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Southern Railway (historical pre-nationalisation) Context triple: [Ifield railway station, hasOperatorHistory, Southern Railway (historical pre-nationalisation)]
-
A.
Southern Railway (UK)
chosen
Southern Railway (UK) was a major British railway company formed in 1923 that operated routes in southern England, including busy commuter and coastal lines, until nationalisation in 1948.
-
B.
Southern Railway
Southern Railway is one of the zones of Indian Railways, administering and operating rail services across much of South India, including Tamil Nadu and parts of neighboring states.
-
C.
Southern Railway
Southern Railway is a major railway line in Austria that connects Vienna with the southern regions and serves as an important international transit route through the Alps.
-
D.
South Eastern Railway
South Eastern Railway is one of the major zones of Indian Railways, operating extensive rail services across eastern and central India.
-
E.
South Eastern Railway
South Eastern Railway was a 19th-century British railway company that operated routes in southeast England, including services through Kent and to the Channel ports.
- 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_69d889da3e8c8190a2b118f383f0beac |
completed | April 10, 2026, 5:25 a.m. |
| NER | Named-entity recognition | batch_69e3c8dbc6e48190be90066b82fc61db |
completed | April 18, 2026, 6:09 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a00c7b273608190b552d8dc22bc51ef |
completed | May 10, 2026, 6 p.m. |
Created at: April 10, 2026, 5:29 a.m.