Triple
T8527734
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Clapham Junction railway station |
E201859
|
entity |
| Predicate | formerOperator |
P179
|
FINISHED |
| Object | Southern Railway (historical) |
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) | Statement: [Clapham Junction railway station, formerOperator, Southern Railway (historical)]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Southern Railway (historical) Context triple: [Clapham Junction railway station, formerOperator, Southern Railway (historical)]
-
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 (U.S.)
Southern Railway (U.S.) was a major American Class I railroad that operated primarily in the southeastern United States before becoming a key predecessor of Norfolk Southern Railway.
-
C.
Canada Southern Railway
Canada Southern Railway was a 19th- and early 20th-century railway company that operated a key east–west main line across southern Ontario, providing an important international link between the U.S. and Canada.
-
D.
Seaboard System Railroad
Seaboard System Railroad was a major U.S. freight railroad of the 1980s that consolidated several southeastern carriers and later became part of CSX Transportation.
-
E.
Seaboard Coast Line Railroad
Seaboard Coast Line Railroad was a major Class I railroad in the southeastern United States, formed in 1967 and known for both freight operations and prominent passenger services before becoming part of CSX Transportation.
- 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_69ca83228b24819085d22e7dc99f5d94 |
completed | March 30, 2026, 2:05 p.m. |
| NER | Named-entity recognition | batch_69cbe6477100819081fa20cb6b8ea3d7 |
completed | March 31, 2026, 3:20 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ce6d54ef908190970a1010c8018abd |
completed | April 2, 2026, 1:21 p.m. |
Created at: March 30, 2026, 6:17 p.m.